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You may receive emails, depending on your communication preferences. Not responding on startup, macOS Mojave Follow 303 views (last 30 days) Show older comments William Smith on 17 Sep 2019 Vote 3 Link × Direct link to this question https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave Cancel Copy to Clipboard ⋮ Vote 3 Link × Direct link to this question https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave Cancel Copy to Clipboard Commented: Athar Ali on 28 Aug 2022 at 20:44 I have just installed MATLAB 2019b on a Macbook Pro 2019 running macOS Mojave 10.14.6. Just after installation, Matlab ran fine. However, if I now try to open it I see the splash screen then it freezes on the Matlab window showing no content and I have to force quit. If I run from the command line with -nodesktop it works and I can even load the desktop from there and it works ok. But if I try to load directly it hangs. I doubt it is a conflict as I have installed barely anything else on this macbook yet. 29 Comments ShowHide&nbsp28 older comments Henk Verhaar on 18 Sep 2019 × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_747168 Cancel Copy to Clipboard ⋮ Link × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_747168 Cancel Copy to Clipboard Same here - opening from the 'icon' gives me an unresponsive blank window after the spash screen. Starting 'from the terminal' (in my case just by double-clicking the 'matlab' script in /Applications/MATLAB R2019b/bin ) works fine - until I change the MatlabPath from a default to my actual folder with my own routines (in /Users/henk/Documents/MATLAB/). Next time I try to start matlab 'from the terminal' I again get the Matlab command window (not blank) but an eternally spinning beach ball... Eric Hall on 18 Sep 2019 × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_747244 Cancel Copy to Clipboard ⋮ Link × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_747244 Cancel Copy to Clipboard Same issue - 2019b hangs in OSX and requires a force quit. Walter Roberson on 18 Sep 2019 × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_747378 Cancel Copy to Clipboard ⋮ Link × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_747378 Cancel Copy to Clipboard If you have Magnet or similar, then turn it off or configure it to ignore matlab William Smith on 18 Sep 2019 × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_747418 Cancel Copy to Clipboard ⋮ Link × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_747418 Cancel Copy to Clipboard I do not have Magnet. tetonedge on 19 Sep 2019 × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_747497 Cancel Copy to Clipboard ⋮ Link × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_747497 Cancel Copy to Clipboard I have the exact same issue as well Simon Schneiderbauer on 19 Sep 2019 × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_747499 Cancel Copy to Clipboard ⋮ Link × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_747499 Cancel Copy to Clipboard Edited: Simon Schneiderbauer on 19 Sep 2019 In my case Matlab 2019b does not even start on MacOS Mojave 10.14.6, while Matlab 2019a works fine. mark yao on 19 Sep 2019 × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_747669 Cancel Copy to Clipboard ⋮ Link × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_747669 Cancel Copy to Clipboard I have same issue (matlab 2019b on macbook pro, MacOS 10.14.6.). It just no reponse after lunch. I did reinstall and restart computer, same thing. Selene Schmittling on 20 Sep 2019 × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_748170 Cancel Copy to Clipboard ⋮ Link × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_748170 Cancel Copy to Clipboard I also have this issue. Thought it might be Spectacle, a window manager I use. However, Matlab 2019b on Mac OS 10.14.6 freezes even in Safe Boot mode. I'm reinstalling and will try opening it from terminal.... Grr...had similar issues with 2019a and 2018b....double grr..... Xiao Liu on 22 Sep 2019 × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_748717 Cancel Copy to Clipboard ⋮ Link × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_748717 Cancel Copy to Clipboard same issue, no response after launch, need force quit. 2019b on MacOS 10.14.6, macbook pro 2013. Davide Pochetti on 25 Sep 2019 × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_749702 Cancel Copy to Clipboard ⋮ Link × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_749702 Cancel Copy to Clipboard Edited: Davide Pochetti on 25 Sep 2019 I have the same issue, v.2R019b freezes after launch on MacOS High Sierra 10.13.6. Solved it by closing OneDrive at bootup. Antoine OLLIER on 6 Oct 2019 × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_753305 Cancel Copy to Clipboard ⋮ Link × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_753305 Cancel Copy to Clipboard Edited: Antoine OLLIER on 6 Oct 2019 thanks for this help ;) I exit onedrive and matlab launch ! (high sierra and 2019b) tetonedge on 12 Oct 2019 × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_755476 Cancel Copy to Clipboard ⋮ Link × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_755476 Cancel Copy to Clipboard I do not have OneDrive and still have this issue Andrey Ko on 15 Oct 2019 × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_756402 Cancel Copy to Clipboard ⋮ Link × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_756402 Cancel Copy to Clipboard i has too royk on 2 Nov 2019 × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_762754 Cancel Copy to Clipboard ⋮ Link × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_762754 Cancel Copy to Clipboard For me, turnning off "Witch" (a program for window switching) solved the problem. Chenyu Guan on 27 Mar 2020 × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_816140 Cancel Copy to Clipboard ⋮ Link × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_816140 Cancel Copy to Clipboard I turned off "Context" and it works. By the way, after turning off context, the previously missing file "MATLABDesktop.xml" in the matlab folder finally shows up. Deepak Sapkota on 24 Apr 2020 × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_834082 Cancel Copy to Clipboard ⋮ Link × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_834082 Cancel Copy to Clipboard I have the same issue with my MacBook 2019. I uninstalled Matlab 2019b and installed Matlabe 2020a, but I still have the same problem. I tried to follow the instruction given by JOn Gotow (here below in answers), but it does not work. Does anyone have any remedy for me to run matlab in my laptop? Thanks. Nate Weger on 14 May 2020 × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_846975 Cancel Copy to Clipboard ⋮ Link × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_846975 Cancel Copy to Clipboard I have the same issue as Deepak, I get the spinning rainbow of death every time I open up Matlab, even after an uninstall/reinstall, don't know how to fix this Nate Weger on 14 May 2020 × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_846977 Cancel Copy to Clipboard ⋮ Link × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_846977 Cancel Copy to Clipboard Just kidding, I followed Jon's instructions and turned off the accessibility for RescueTime and now it works! António Costa on 17 May 2020 × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_848626 Cancel Copy to Clipboard ⋮ Link × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_848626 Cancel Copy to Clipboard I had the same problem on Catalina with R2020a. Turned off the accessibility for RescueTime and it worked! Myles Mcleod on 30 May 2020 × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_875547 Cancel Copy to Clipboard ⋮ Link × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_875547 Cancel Copy to Clipboard Same issue with Catalina and R2020a. Removed accessibility permission for a utility named Contexts. That did the trick. Thanks! Giovanni Grassi on 4 Jun 2020 × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_884006 Cancel Copy to Clipboard ⋮ Link × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_884006 Cancel Copy to Clipboard what is rescuetime? Walter Roberson on 4 Jun 2020 × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_884177 Cancel Copy to Clipboard ⋮ Link × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_884177 Cancel Copy to Clipboard rescuetime appears to be time tracking and distraction blocking; https://www.rescuetime.com/premium Samer Mohamed on 12 Jun 2020 × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_894573 Cancel Copy to Clipboard ⋮ Link × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_894573 Cancel Copy to Clipboard Okay, wow, this is crazy. I also happen to have RescueTime on my computer and quitting it seems to have allowed Matlab to work on startup instantly. It bothers me so much that they can't play nice together. Oh well, thanks for the advice! Elizabeth Van Itallie on 1 Sep 2020 × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_993473 Cancel Copy to Clipboard ⋮ Link × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_993473 Cancel Copy to Clipboard I had the same issue and quit rescue time and now MATLAB is working. MATLAB needs to fix this... Matt DuHarte on 6 Sep 2020 × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_998581 Cancel Copy to Clipboard ⋮ Link × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_998581 Cancel Copy to Clipboard I can add that on OSX the Timing App (same concept as Rescue Time) will exhibit the same behavior. Ruben Plaza on 15 Sep 2020 × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_1010617 Cancel Copy to Clipboard ⋮ Link × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_1010617 Cancel Copy to Clipboard They should fix this, but as long as I quit rescue time it works. I was thinking it was an error with command line tools or xcode Simardeep Hari on 16 Nov 2020 × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_1137813 Cancel Copy to Clipboard ⋮ Link × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_1137813 Cancel Copy to Clipboard Hi guys, nothing anyone suggested worked for me and then I tried my own way: I'd advise making a backup of your MATLAB folder on your desktop in case you need any of your files later. Once that's done, just go to your MATLAB folder and delete all of its contents. Try opening MATLAB again and it should work. I think what happened was there was a faulty function or script in my MATLAB folder that kept messing it up for me. I hope this helps someone :) Sebastian Sas Brunser on 2 Dec 2020 × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_1177618 Cancel Copy to Clipboard ⋮ Link × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_1177618 Cancel Copy to Clipboard Thanks Simardeep Hari . This solved my problem. Athar Ali on 28 Aug 2022 at 20:44 × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_2336560 Cancel Copy to Clipboard ⋮ Link × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_2336560 Cancel Copy to Clipboard I experience same issue on MAC book Pro. Matlab 2020b and Matlab 2022a. While editing the figure or scope image. Sign in to comment. Sign in to answer this question. I have the same question (3) I have the same question (3) Answers (23) Jon Gotow on 29 Oct 2019 Vote 48 Link × Direct link to this answer https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#answer_398840 Cancel Copy to Clipboard ⋮ Vote 48 Link × Direct link to this answer https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#answer_398840 Cancel Copy to Clipboard Edited: Jon Gotow on 21 Mar 2021 Helpful (48) Helpful (48) I'm the developer of Default Folder X. With the help of Philip Slaymaker I've tracked down the issue with Matlab. Matlab doesn't launch correctly if other apps use the Accessibility API (a part of macOS) to query it for information while it's launching. A number of apps use the Accessibility API to communicate with other applications. These include Default Folder X, Magnet, Spectacle, and most other utilities that help you arrange / resize windows. If you run into this problem, you can narrow down the possible culprits by going to System Preferences > Security & Privacy > Privacy > Accessibility. This list shows all the applications that you've given permission to use the Accessibility API - one of them is triggering the bug in Matlab and causing it to hang. You'll need to use a process of elimination to determine which one, but it'll usually be an app that gets and sets information about other applications' windows. Note that contacting the developer of any of these applications won't really help much, as it's not their fault. The fundamental issue is that Matlab contains a bug that causes it to hang when other apps request information via the Accessibility API. That bug needs to be fixed to resolve this problem. Phil Slaymaker submitted the bug to MathWorks - hopefully they'll fix it soon. In the meantime, if you're a Default Folder X user, I have a version of DFX that may successfully work around the problem. I'd appreciate hearing from you at support (at) stclairsoft (dot) com. - Jon 30 Comments ShowHide&nbsp29 older comments YU LI on 5 Nov 2019 × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_763979 Cancel Copy to Clipboard ⋮ Link × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_763979 Cancel Copy to Clipboard Thanks and I was able to start Matlab now with your advice. This answer shall be voted so more people can see it. Jon Gotow on 6 Nov 2019 × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_764417 Cancel Copy to Clipboard ⋮ Link × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_764417 Cancel Copy to Clipboard I've released version 5.4.2 of Default Folder X with a workaround for this problem, so you can now run Default Folder X and MATLAB 2019b together without triggering the bug. Walter Roberson on 6 Nov 2019 × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_764421 Cancel Copy to Clipboard ⋮ Link × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_764421 Cancel Copy to Clipboard Thank you, Jon Gotow !! Zoran Popovic on 6 Jan 2020 × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_783388 Cancel Copy to Clipboard ⋮ Link × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_783388 Cancel Copy to Clipboard Just installed Matlab R2019b on Catalina v10.15.2 (19C57) and ran into this issue. Upgraded DFX to 5.4.2 and all works like a charm. Thanks for the tip Jon! Cheers, Zoran Jon Gotow on 6 Jan 2020 × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_783505 Cancel Copy to Clipboard ⋮ Link × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_783505 Cancel Copy to Clipboard You're welcome - glad it's all working correctly now! Deemo Chen on 28 Jan 2020 × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_790923 Cancel Copy to Clipboard ⋮ Link × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_790923 Cancel Copy to Clipboard You save my day! A real time translation app is requesting the api causing the freezing issue(Catalina 15.2, r2019b), uncheck from the Accessibility solve the problem!! Thanks Deemo Juan on 7 Feb 2020 × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_794710 Cancel Copy to Clipboard ⋮ Link × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_794710 Cancel Copy to Clipboard Jon: i also have the same issue. MATLAB recommended your post and I tried to disable most of the apps. The only one active now is Dropbox (that I truly need active). Is there any other way to solve this problem? thanks Jon Gotow on 8 Feb 2020 × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_794891 Cancel Copy to Clipboard ⋮ Link × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_794891 Cancel Copy to Clipboard Go ahead and turn off the checkbox for Dropbox. Dropbox will still sync files fine without it (I'm not actually sure why Dropbox needs that permission, to be honest - I never grant it). - Jon yongtong liu on 16 Feb 2020 × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_797925 Cancel Copy to Clipboard ⋮ Link × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_797925 Cancel Copy to Clipboard You are so GREAT! Artur Soczawa-Stronczyk on 20 Feb 2020 × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_800019 Cancel Copy to Clipboard ⋮ Link × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_800019 Cancel Copy to Clipboard Disabling Magnet solved the issue for me. Filip Cizner on 5 Apr 2020 × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_821597 Cancel Copy to Clipboard ⋮ Link × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_821597 Cancel Copy to Clipboard Thank you, in my case it was program "Contexts". There is no need to disable it in setting -> solution is to open Contexts, push "Quit Contexts" . Then load Matlab, after loading Matlab Contexts could be run again. Thank you Jon! Thomas Busey on 22 Apr 2020 × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_833026 Cancel Copy to Clipboard ⋮ Link × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_833026 Cancel Copy to Clipboard Edited: Thomas Busey on 22 Apr 2020 Turning off onedrive while I launch matlab 2020a worked for me. Just quit onedrive from the menu and then relaunch onedrive from the applications folder. Lucas Schneeberger on 28 Apr 2020 × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_836937 Cancel Copy to Clipboard ⋮ Link × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_836937 Cancel Copy to Clipboard Hey Jon, Thanks for this valuable answer. How can we support Phil Slaymaker's bug submission? Is there a way to make Mathwork raise it the issue to a higher priority? Thanks a lot for your research and answer. Lucas Jon Gotow on 28 Apr 2020 × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_837123 Cancel Copy to Clipboard ⋮ Link × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_837123 Cancel Copy to Clipboard I believe the bug has been fixed in MATLAB 2020 now, though I'm not absolutely certain. It'd be good to hear from someone that's upgraded and can confirm that for sure. - Jon Licheng MAO on 29 Apr 2020 × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_837441 Cancel Copy to Clipboard ⋮ Link × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_837441 Cancel Copy to Clipboard Unfortunately, I still have the problem on 2020a. I need to quit another software to use 2020a. Jon Gotow on 30 Apr 2020 × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_838615 Cancel Copy to Clipboard ⋮ Link × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_838615 Cancel Copy to Clipboard Thanks Licheng - that's disappointing, but good to know. I thought they'd finally fixed it :-( Mark Weggeland on 11 May 2020 × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_845704 Cancel Copy to Clipboard ⋮ Link × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_845704 Cancel Copy to Clipboard I recently replaced my MBP and in the process of reinstalling Matlab upgraded to r2020a from r2019. When I did so, I ran into this problem for the first time (it was working with r2019...), and it is still broken. The only way I can get Matlab to launch is to quit Default Folder X. Giles on 28 Jun 2020 × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_916681 Cancel Copy to Clipboard ⋮ Link × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_916681 Cancel Copy to Clipboard Still happening at startup on 2020a for me too. Moreover, removing permissions for other apps that use the Accessibility API has not always worked to fix this bug, as others have reported. At least three updates and one major version release later. You'd think this would have been a priority for them... I don't understand companies that spend their resources slopping on new features while the ones they already have don't work (in this case the feature of being able to start their app in the first place). Lin Qi on 12 Aug 2020 × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_969462 Cancel Copy to Clipboard ⋮ Link × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_969462 Cancel Copy to Clipboard Unfortunately, the bug still exists currently on Aug 2020 lol. And, I have cancelled every app's permission to accessibility, yet the bug still exists. Sometimes Matlab could be opened, but sometimes it freezes on initialising. I can't find any pattern when it's okay and when it's not. Lin Qi on 12 Aug 2020 × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_969570 Cancel Copy to Clipboard ⋮ Link × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_969570 Cancel Copy to Clipboard Here is a solution maybe. Open MATLAB, and then open another app, or let another app come into the front, anyway let the MATLAB starting in the background. Then it would successfully startup every time on my laptop. If I just open MATLAB and let it starting in the front, it would be randomly a success or failure. Can't find any pattern. Dave on 4 Sep 2020 × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_997135 Cancel Copy to Clipboard ⋮ Link × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_997135 Cancel Copy to Clipboard Lin, thanks for your suggestion on 12 August 2020 about opening MATLAB in the background. This seems to work for me on R2019b and OS 10.14.6. (I will also add that the suggestion by CoolNickname below did not.) Xiaoye Wang on 16 Sep 2020 × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_1011616 Cancel Copy to Clipboard ⋮ Link × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_1011616 Cancel Copy to Clipboard Lin's method works marvelously for me too. I'm using R2020a and macOS 10.15.6 Lin Qi on 27 Sep 2020 × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_1026784 Cancel Copy to Clipboard ⋮ Link × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_1026784 Cancel Copy to Clipboard No worries Dave. And FYI, the bug has disappeared in the newest 2020b as I tested. Hopefully this could work for you as well. Good luck! Graham Langford on 21 Feb 2021 × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_1344459 Cancel Copy to Clipboard ⋮ Link × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_1344459 Cancel Copy to Clipboard I'm running MATLAB 2020b and Catalina 10.15.7 and this trick just worked for me. Thanks for the help! Andrew Stone on 20 Mar 2021 × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_1406142 Cancel Copy to Clipboard ⋮ Link × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_1406142 Cancel Copy to Clipboard Jon, you hero! I'm annoyed how easy this was to fix and that I put up with dozens of crashes and time-outs over the last several months (atleast once a session), somebody give this guy a medal! After only using for about 10 mintues of use since turning off accessibility pervilages for certain apps as Jon mentioned, performace is signifcantly improved and UI is also drasically more responsive (like control systems designer toolbox and plotting tools). There was sereral things that would consistently cause a 'MATLAB not responding' error or crash all togeather that I've since tested and it's very smooth; I'm thinking for me it was Magent App that was causing the issue but I can't say for sure since I also revoked privilages from 2 or 3 other apps. I had this issue on several versions of matlab (most noticable since OS 11 BigSur). Today I upgraded to 2021a to see if my issues would resolve from an update (which it didn't) which led me to this solution ; Thanks Jon! Jon Gotow on 21 Mar 2021 × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_1406612 Cancel Copy to Clipboard ⋮ Link × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_1406612 Cancel Copy to Clipboard Glad it helped! I still can't believe this issue is still kicking :-( Pedro Bezerra on 24 Jun 2021 × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_1601255 Cancel Copy to Clipboard ⋮ Link × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_1601255 Cancel Copy to Clipboard Thank you! I have MatLab R2020a running in a 2011 MacBook Pro with High Sierra macos. I disabled Spectacle in System Accessibility and worked fine! Antonino Samuele Cucinotta on 10 Nov 2021 × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_1826344 Cancel Copy to Clipboard ⋮ Link × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_1826344 Cancel Copy to Clipboard Problem still present on Matlab 2021b, I encountered this bug just after installed macOS Monterey (2020 intel chip Mac). Using this tip and disabling "zoom" worked for me, but honestly reading that this problem is releted to September 2019 is not so encouragin. Thanks a lot for all the comments. SC Chouaib Bencheikh on 11 Jan 2022 × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_1929630 Cancel Copy to Clipboard ⋮ Link × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_1929630 Cancel Copy to Clipboard Thank you so much! I was experiencing tremednous lagging when using MATLAB. Moreover, I had the issue that whne I try to close figures using the command "close all" MATLAB stops working. I followed your instructions and I found that Grammarly was the application creating the issue. Jingjing Zou on 19 Feb 2022 × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_1994690 Cancel Copy to Clipboard ⋮ Link × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_1994690 Cancel Copy to Clipboard thank you for the answer. Unfortunately I still have the issue after checking and confirming no app is using the API. Matlab would initially start fine with slight lag. But after plotting a couple of figure, it freezes again and becomes unuseable. Sign in to comment. CoolNickname on 16 Mar 2020 Vote 15 Link × Direct link to this answer https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#answer_420416 Cancel Copy to Clipboard ⋮ Vote 15 Link × Direct link to this answer https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#answer_420416 Cancel Copy to Clipboard Edited: CoolNickname on 24 Mar 2020 Helpful (15) Helpful (15) I had the same problem today with R2019b. Out of nowhere - well, after installing update 5 of R2019b - it stopped working. MATLAB would just not open after clicking it. The little dot under thy icon appeared and disappeared shortly after. But I was able to start MATLAB through the terminal via /Applications/MATLAB_R2019b.app/bin/matlab But the real problem solver was to give it full disk access. For that please go to Preferences > Security & Privacy > Privacy > Full Disk Access. There you should check MATLAB. Or, if it isn't listed, click on the + and look for it in the Application folder and add it to the list manually. After doing that it was good to go. I also use the app "Magnet", but that didn't cause the problem. However, one should constrain Magnet to ignore MATLAB, otherweise MATLAB could be quite laggy. Hope that helps. 8 Comments ShowHide&nbsp7 older comments jiajun chen on 29 Apr 2020 × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_837547 Cancel Copy to Clipboard ⋮ Link × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_837547 Cancel Copy to Clipboard It really helps!!! My matlab now works again~ I turn on the full dick access and then the it works. Later I turn off the access it still works! Thanks Chloe Pappas on 18 May 2020 × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_849428 Cancel Copy to Clipboard ⋮ Link × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_849428 Cancel Copy to Clipboard This worked for me! Completely stopped lagging and fixed the whole problem. Thank you! Todd DeLong on 23 May 2020 × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_859303 Cancel Copy to Clipboard ⋮ Link × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_859303 Cancel Copy to Clipboard This worked for me as well. I also offer my many thanks! Shen Mingxi Shen on 31 May 2020 × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_876135 Cancel Copy to Clipboard ⋮ Link × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_876135 Cancel Copy to Clipboard it works!!! maybe it is the real reason, thanks so much! Yishaia Zabary on 24 Jun 2020 × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_911320 Cancel Copy to Clipboard ⋮ Link × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_911320 Cancel Copy to Clipboard You are a life saver! thanks! Mark Weggeland on 29 Jun 2020 × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_918340 Cancel Copy to Clipboard ⋮ Link × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_918340 Cancel Copy to Clipboard Thank you. This solved the problem with DFX. John Sheridan on 17 Aug 2020 × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_975213 Cancel Copy to Clipboard ⋮ Link × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_975213 Cancel Copy to Clipboard Thanks Jon, as a long tem ( and very satisfied user) of Default Folder X, this was not something I was aware of or would have ever thought of. I removed DFX from accessibility and instantly worked. Have passed on the solution to my University IT Help but I imagine it is a rare combination of software interactions. Thanks, John Sheridan Emeritus Professor of Fluid Mechanics Miguel Cruz on 28 Oct 2020 × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_1093808 Cancel Copy to Clipboard ⋮ Link × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_1093808 Cancel Copy to Clipboard Thank you soo much coolnickname Sign in to comment. Selene Schmittling on 22 Apr 2020 Vote 9 Link × Direct link to this answer https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#answer_427679 Cancel Copy to Clipboard ⋮ Vote 9 Link × Direct link to this answer https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#answer_427679 Cancel Copy to Clipboard Helpful (9) Helpful (9) Here I am again in this Discussion thread. I was so hoping I wouldn't have to return. I run MATLAB R2019b on macOS Catalina 10.15.4. I have not had issues with MATLAB in a while then suddenly (when I'm under a time crunch, of course) I get the whiring pinwheel of death every time I open MATLAB. What I am posting now is a quick and dirty way to get a responsive instance of MATLAB (I can't worry about an actual fix right now). I open an instance of Terminal. I type "/{path_to_your_matlab_application_folder}/bin -nodesktop" (replace the material in braces {} with the path to your Matlab application folder). This starts a command line instance of MATLAB (I assume). At the ">>" prompt I type "desktop". Then I find myself in a working instance of MATLAB able to do my work. You can find this solution by querying "MATLAB not responding". I may have cobbled it together by reading more than one post. I wanted to share here in the hopes that it kept others from unnecessary hair loss. Regards, S 11 Comments ShowHide&nbsp10 older comments Thomas Busey on 22 Apr 2020 × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_833141 Cancel Copy to Clipboard ⋮ Link × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_833141 Cancel Copy to Clipboard This worked great. Thanks for posting. A slight correction (forgot the matlab part): /Applications/MATLAB_R2020a.app/bin/matlab -nodesktop Raymond Phan on 24 Apr 2020 × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_834148 Cancel Copy to Clipboard ⋮ Link × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_834148 Cancel Copy to Clipboard This also worked for me as well. I have no idea why the hell it keeps freezing. Thanks! Deepak Sapkota on 29 Apr 2020 × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_837408 Cancel Copy to Clipboard ⋮ Link × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_837408 Cancel Copy to Clipboard Doing this opens the matlab via the Terminal, not through the shortcut icon. Xiaokai Xia on 30 Apr 2020 × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_838282 Cancel Copy to Clipboard ⋮ Link × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_838282 Cancel Copy to Clipboard Edited: Xiaokai Xia on 30 Apr 2020 It works for me. Matlab R2020 and macOS 10.15.4 Thank you so much. Andrew Davies on 15 May 2020 × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_847953 Cancel Copy to Clipboard ⋮ Link × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_847953 Cancel Copy to Clipboard Worked for me. After doing this once, MATLAB stated launching normally again. What was different was the start folder, I'd been poking around in the matlab setting folder (~/Library/Application Support/MathWorks/MATLAB/R2020a) and launched from there, MATLAB remembered the start folder next time and worked. Curiously after reverting the start folder it still launches... Selene Schmittling on 15 May 2020 × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_848054 Cancel Copy to Clipboard ⋮ Link × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_848054 Cancel Copy to Clipboard Thank you for this information. I had the same experience. After using the command line work around a few times, I was able to start MATLAB from the Applications folder. However, I didn't understand why it work. :P Stuart Campbell on 11 Jun 2020 × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_894198 Cancel Copy to Clipboard ⋮ Link × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_894198 Cancel Copy to Clipboard Thank you so much for posting this work-around - what a life-saver! Giulio Suzumura on 10 Jul 2020 × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_932468 Cancel Copy to Clipboard ⋮ Link × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_932468 Cancel Copy to Clipboard Thank you!!! Dz Y on 24 Aug 2020 × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_983972 Cancel Copy to Clipboard ⋮ Link × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_983972 Cancel Copy to Clipboard this works Parminder Basran on 23 Sep 2020 × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_1021681 Cancel Copy to Clipboard ⋮ Link × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_1021681 Cancel Copy to Clipboard Edited: Parminder Basran on 23 Sep 2020 Thanks! This got me going again with my 2020a installation, mac 10.15.6 Anand Kulkarni on 31 Mar 2021 × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_1431099 Cancel Copy to Clipboard ⋮ Link × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_1431099 Cancel Copy to Clipboard Thank you for posting this!! It works for me. 2020a with 10.14.6. Sign in to comment. Lin Qi on 12 Aug 2020 Vote 4 Link × Direct link to this answer https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#answer_478626 Cancel Copy to Clipboard ⋮ Vote 4 Link × Direct link to this answer https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#answer_478626 Cancel Copy to Clipboard Helpful (4) Helpful (4) Here is a solution maybe. Open MATLAB, and then open another app, or let another app come into the front, anyway let the MATLAB starting in the background. Then it would successfully startup every time on my laptop. If I just open MATLAB and let it starting in the front, it would be randomly a success or failure. Can't find any pattern. 6 Comments ShowHide&nbsp5 older comments Stefan Baginski on 22 Aug 2020 × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_981482 Cancel Copy to Clipboard ⋮ Link × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_981482 Cancel Copy to Clipboard This has also worked in my case. Strange. Parminder Basran on 23 Sep 2020 × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_1021684 Cancel Copy to Clipboard ⋮ Link × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_1021684 Cancel Copy to Clipboard FWIW, this did not work for 2020a and Catalina 10.16.6, nor for my 2019b instance. Lin Qi on 27 Sep 2020 × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_1026769 Cancel Copy to Clipboard ⋮ Link × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_1026769 Cancel Copy to Clipboard Try 2020b mates. The bug disappeared in this version. Giles on 3 Oct 2020 × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_1035076 Cancel Copy to Clipboard ⋮ Link × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_1035076 Cancel Copy to Clipboard There are about 20 solutions that people claim to work in the comments for this bug. I have tried most of them. This is the only one that works for me. Works every time: start MATLAB, wait for the splash screen, switch focus to any other app, let MATLAB continue to open behind it (you can move the front app window to see where it's at), when you see the MATLAB command window say "Ready" in its footer bar switch focus to MATLAB -> good to go. Works every time for me. goc3 on 5 Oct 2020 × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_1036834 Cancel Copy to Clipboard ⋮ Link × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_1036834 Cancel Copy to Clipboard 2020b does seem to have fixed the problem, as mentioned by @Lin Qi. Also, having to put MATLAB in the background during startup does not seem to be required for 2020b. Side note: none of the fixes mentioned in this thread, including letting MATLAB start up without focus, worked for me in 2020a, other than starting it up in terminal using the "-nodesktop" option and then running the desktop command. Peter Kaczkowski on 11 Dec 2020 × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_1198795 Cancel Copy to Clipboard ⋮ Link × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_1198795 Cancel Copy to Clipboard Changing focus works for me too with 2019b. Unfortunately, the code I need to run does not yet work with 2020b, so I'm SOL. Sign in to comment. Zongde Qiu on 19 Sep 2019 Vote 2 Link × Direct link to this answer https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#answer_392687 Cancel Copy to Clipboard ⋮ Vote 2 Link × Direct link to this answer https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#answer_392687 Cancel Copy to Clipboard Helpful (2) Helpful (2) same issue on MacOS 10.14.6 0 Comments ShowHide -1 older comments Sign in to comment. Selene Schmittling on 23 Sep 2019 Vote 2 Link × Direct link to this answer https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#answer_393120 Cancel Copy to Clipboard ⋮ Vote 2 Link × Direct link to this answer https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#answer_393120 Cancel Copy to Clipboard Helpful (2) Helpful (2) I have finally gotten MATLAB 2019b to work on my mac with os 10.14.6. Initially, I could not even get MATLAB to run in Safe Boot Mode. However, after a clean uninstall (including deleting Mathworks folder out of "Application Support" folder, I was able to get it running. There were four possible sources of conflict: Goolge Drive Stream, OneDrive, Spectacle and Echo Desktop auto-loader (loads when Echo pen connected to USB). I turned all these off and opened MATLAB and it worked. I turned off the automatic load of Echo Desktop and turned it back on. MATLAB still working I also have a piece of software called Spectacle, which sizes windows with keystrokes. I turned that off and have since turned it back on and am still running MATLAB successfully. I have not started up Google Drive Stream or OneDrive yet. I'm just so happy to have MATLAB working, I don't want to tempt fate. When I turn these back on, I'll post back my results. I hope this helps someone else struggling with this issue too. Regards and good luck, 5 Comments ShowHide&nbsp4 older comments Viktor Nilsson on 24 Sep 2019 × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_749310 Cancel Copy to Clipboard ⋮ Link × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_749310 Cancel Copy to Clipboard Uninstalling OneDrive solved it for me. Thank you! mark yao on 4 Oct 2019 × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_752849 Cancel Copy to Clipboard ⋮ Link × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_752849 Cancel Copy to Clipboard HI, Selene Schmittling What you mean by "I turned all these off .... " (and opened MATLAB and it worked.). I have google drive installed, how do you turned off or stop and start them on Mac? Thanks Selene Schmittling on 4 Oct 2019 × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_752851 Cancel Copy to Clipboard ⋮ Link × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_752851 Cancel Copy to Clipboard To "turn the apps off" I followed two steps: I disabled the apps from loading on start-up in their preferences and then quit each of them. In the case of Google Drive File Stream app, this is done by clicking on the gear in the upper right. To disable "load on startup" go to preferences after clicking on gear. To quit click on gear and choose quit. I just started Google Drive File Stream app back up again and I'm using MATLAB. So far no issues. It may be that OneDrive is the issue especially since Viktor Nilsson said uninstalling OneDrive solved it. I have not started OneDrive since this issue was resolved. I hope that's helpful. Regards! Selene Schmittling on 8 Oct 2019 × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_753977 Cancel Copy to Clipboard ⋮ Link × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_753977 Cancel Copy to Clipboard UPDATE: I have reloaded Google File Drive Stream. It currently auto-loads on start-up and I have not had an issue yet with MATLAB 2019b. This leaves One Drive, which was an issue for Viktor above. I'm loath to load it again and have my precious house of cards fall to its knees. For now, I'll keep it off. However, if in the future I turn it back on and use MATLAB, I'll be sure to post my results. -S Selene Schmittling on 3 Nov 2019 × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_763050 Cancel Copy to Clipboard ⋮ Link × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_763050 Cancel Copy to Clipboard UPDATE: AAAAAARRRRGGGHHHH!!!! This ridiculous bug is back (of course when I need to get some work done). I have this issue on a Mac Book Pro 2016 running Catalina 10.15.1. MATLAB® people: please, please fix this. I have been running MATLAB fine, even with Spectacle running, then out of the blue, MATLAB hangs again. Once it hangs, there is no way to get it running without reinstalling the whole mess again shy of (hopefully) booting in safe mode. I went in and removed all items that required accessibility to whit: Spectacle, Duet and Google File Drive Stream. I have rebooted my machine (multiple times) and MATLAB still hangs. This is beyond infuriating. I'm going to boot into safe mode and hope I can get my work done. Sign in to comment. Gregor Dumphart on 11 Dec 2020 Vote 2 Link × Direct link to this answer https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#answer_572385 Cancel Copy to Clipboard ⋮ Vote 2 Link × Direct link to this answer https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#answer_572385 Cancel Copy to Clipboard Helpful (2) Helpful (2) I was also troubled by Matlab R2020b getting stuck usually in the first minute of use on macOS Big Sur. I followed all suggestions in this topic, but to no avail. Here's what fixed it for me: In System Preferences -> Accessibility -> Zoom, deactivate everything, especially Advanced -> Smooth Images. Immediately, my Matlab experience became a hundred times more fluent and I am stuck-free ever since. Cheers 1 Comment ShowHide&nbspNone Guo Jack on 2 Dec 2021 × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_1863975 Cancel Copy to Clipboard ⋮ Link × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_1863975 Cancel Copy to Clipboard Thank you so much. This also works for me. Sign in to comment. Jason on 1 Dec 2019 Vote 1 Link × Direct link to this answer https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#answer_404083 Cancel Copy to Clipboard ⋮ Vote 1 Link × Direct link to this answer https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#answer_404083 Cancel Copy to Clipboard Helpful (1) Helpful (1) I'm not sure if this is related, but when I upgraded to Catalina, I lost the ability to access many folders on my computer (Matlab R2017b). I added Matlab under System Preferences --> Security & Privacy --> Privacy --> Full Disk Access, but it didn't change anything. Upon bootup, Matlab can't find many of the files in the Matlab path. And I can't navigate to a lot of folders on the disk. 1 Comment ShowHide&nbspNone Jason on 1 Dec 2019 × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_773085 Cancel Copy to Clipboard ⋮ Link × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_773085 Cancel Copy to Clipboard I think I found the reason for the issue. Catalina moves any folders in the root directory of the computer into this folder: /Users/Shared/Relocated Items. This effected some of my folders, so I will have to update everything in my Matlab path definition file unfortunately. Sign in to comment. Feiran li on 14 Feb 2020 Vote 1 Link × Direct link to this answer https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#answer_415546 Cancel Copy to Clipboard ⋮ Vote 1 Link × Direct link to this answer https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#answer_415546 Cancel Copy to Clipboard Helpful (1) Helpful (1) Have the same problem Matlab2019b macOs Catalina 10.15.3. solved the problem by blocking Dropbox from System Preferences --> Security & Privacy --> Privacy --> Accessibility. 3 Comments ShowHide&nbsp2 older comments Matteo Seclì on 11 Aug 2020 × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_968401 Cancel Copy to Clipboard ⋮ Link × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_968401 Cancel Copy to Clipboard Had the same problem and indeed after closing Dropbox I was able to run MATLAB. Ifeoma Nwogu on 16 Aug 2020 × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_974778 Cancel Copy to Clipboard ⋮ Link × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_974778 Cancel Copy to Clipboard Actually, for me, blocking Dropbox wasn't enough, I had to remove it by clicking on the "-" sign on the Accessibility tab. I can always add it back using the "+" sign, but for now, I'm just glad to see my MATLAB up and workig again. I am using Matlab2019b as well. George A. on 24 Nov 2020 × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_1157273 Cancel Copy to Clipboard ⋮ Link × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_1157273 Cancel Copy to Clipboard Edited: George A. on 24 Nov 2020 I had to remove the app Contexts. Dropbox is ok for me. With Contexts enabled I have to delete the folder "~/Library/Application\ Support/MathWorks/MATLAB/R2019b/" before opening Matlab. Sign in to comment. Brian Taylor on 7 Mar 2022 Vote 1 Link × Direct link to this answer https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#answer_912394 Cancel Copy to Clipboard ⋮ Vote 1 Link × Direct link to this answer https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#answer_912394 Cancel Copy to Clipboard Helpful (1) Helpful (1) I have multiple screens and a laptop, Matlab refuses to go past the spash screen. I have discovered that by unplugging all of the extra screens that it will start. Would be nice to get this bug fixed. 0 Comments ShowHide -1 older comments Sign in to comment. Jonathan Lilly on 4 Oct 2019 Vote 0 Link × Direct link to this answer https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#answer_394770 Cancel Copy to Clipboard ⋮ Vote 0 Link × Direct link to this answer https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#answer_394770 Cancel Copy to Clipboard Helpful (0) Helpful (0) A perhaps similar issue for me. Matlab 2019b was working, but there was a strange bug which is that I was unable to select text with the mouse in Matlab, which I do all the time. After reading this thread, I traced the problem to a window-sizing software called Magnet that I had recently installed. This solved the problem. Thanks! 0 Comments ShowHide -1 older comments Sign in to comment. Philip Slaymaker on 26 Oct 2019 Vote 0 Link × Direct link to this answer https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#answer_398344 Cancel Copy to Clipboard ⋮ Vote 0 Link × Direct link to this answer https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#answer_398344 Cancel Copy to Clipboard Helpful (0) Helpful (0) I had a similar issue with Matlab 2019b (Matlab 2019a worked fine) not finishing initializing the command window and then freezing, requiring a force quit of Matlab. This happened on both Mojave 10.14.6 and High Sierra 10.13.6 on the iMac 27 2019 and 2017, respectively. I found that quitting and not running Default Folder 5.4.1 at all (or earlier versions) allowed Matlab to load and run. Rerunning Default Folder while Matlab was running caused Matlab windows to freeze. 0 Comments ShowHide -1 older comments Sign in to comment. Andriy Yabluchanskiy on 7 Nov 2019 Vote 0 Link × Direct link to this answer https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#answer_400239 Cancel Copy to Clipboard ⋮ Vote 0 Link × Direct link to this answer https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#answer_400239 Cancel Copy to Clipboard Edited: Andriy Yabluchanskiy on 7 Nov 2019 Helpful (0) Helpful (0) i found that the problem, at least on my end, is somehow connected to the network in my institution. matlab runs fine when on my home network but always freezes on splash screen when at work macOs Catalina 10.15.1 Matlab 2019b 0 Comments ShowHide -1 older comments Sign in to comment. robin tournemenne on 23 Jan 2020 Vote 0 Link × Direct link to this answer https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#answer_411665 Cancel Copy to Clipboard ⋮ Vote 0 Link × Direct link to this answer https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#answer_411665 Cancel Copy to Clipboard Helpful (0) Helpful (0) I also have this problem. Among the list of possible conflicts with other softwares I see spectacle that I use basically always. Very annoying, please do something mathworks, now I need to work in the terminal witht he command matlab -nodesktop... 0 Comments ShowHide -1 older comments Sign in to comment. Selene Schmittling on 23 Jan 2020 Vote 0 Link × Direct link to this answer https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#answer_411682 Cancel Copy to Clipboard ⋮ Vote 0 Link × Direct link to this answer https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#answer_411682 Cancel Copy to Clipboard Helpful (0) Helpful (0) So, for the last few months, I have basically resorted to unloading Spectacle whenever I use MATLAB and not loading it again until I've close MATLAB. This is extremely annoying but certainly less annoying than the unending spinning pinwheel of death. Since using this procedure, I have not encountered any freezing issues. I have not checked whether OneDrive or Google File Stream continue to be issues. I will try to remember to do that and report back. Regards, S 0 Comments ShowHide -1 older comments Sign in to comment. Yiqian Qian on 24 Feb 2020 Vote 0 Link × Direct link to this answer https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#answer_417171 Cancel Copy to Clipboard ⋮ Vote 0 Link × Direct link to this answer https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#answer_417171 Cancel Copy to Clipboard Helpful (0) Helpful (0) For my case, it conflicts with Google Drive Backup & Sync.app. when i quit Google Drive, it can be launched succesfully. 0 Comments ShowHide -1 older comments Sign in to comment. Mickey London on 28 Apr 2020 Vote 0 Link × Direct link to this answer https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#answer_428833 Cancel Copy to Clipboard ⋮ Vote 0 Link × Direct link to this answer https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#answer_428833 Cancel Copy to Clipboard Helpful (0) Helpful (0) The feedback of disabling accessibility applications worked for me. The App the caused the issue was Magnets. When checked out, Matlab stopped hanging. Thanks 0 Comments ShowHide -1 older comments Sign in to comment. Sangjae on 29 Jun 2020 Vote 0 Link × Direct link to this answer https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#answer_458518 Cancel Copy to Clipboard ⋮ Vote 0 Link × Direct link to this answer https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#answer_458518 Cancel Copy to Clipboard Edited: Sangjae on 29 Jun 2020 Helpful (0) Helpful (0) I have same problem, MATLAB 2020a & MacOS Catalina 2 Comments ShowHide&nbsp1 older comment Zoran Popovic on 29 Jun 2020 × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_917446 Cancel Copy to Clipboard ⋮ Link × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_917446 Cancel Copy to Clipboard Running Matlab R2020a and Default Folder X 5.4.6 on Catalina v10.15.5. No problems after following Jon Gotow's tip above - https://se.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#answer_398840 Sangjae on 30 Jun 2020 × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_918409 Cancel Copy to Clipboard ⋮ Link × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_918409 Cancel Copy to Clipboard Thanks!, I tried removing all items checked in the accessibility, but, unfortunately, it doesn't work in my case. when I checked the syslog (/var/log/system), it said com.apple.xpc.launchd[1] (com.mathworks.matlab.19992[1601]): Service exited with abnormal code: 1 Sign in to comment. Stefan Baginski on 15 Aug 2020 Vote 0 Link × Direct link to this answer https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#answer_480405 Cancel Copy to Clipboard ⋮ Vote 0 Link × Direct link to this answer https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#answer_480405 Cancel Copy to Clipboard Helpful (0) Helpful (0) My solution to this and the only one which allowed me to start MATLAB again was to delete the ~/Library/Application Support/MathWorks/MATLAB/R2020a Afterwards MATLAB started again but unfortunately your settings are gone. So I recommend to make a copy of the folder just in case. But so far I was not able to figure out which file is causing the issue. 3 Comments ShowHide&nbsp2 older comments Stefan Baginski on 22 Aug 2020 × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_981506 Cancel Copy to Clipboard ⋮ Link × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_981506 Cancel Copy to Clipboard Also I found now another solution which worked for me and is just that after starting MATLAB I switch to another program like Finder and let MATLAB start in the background. This was also mentioned here: https://www.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_981482 Jayasubba Reddy Yarava on 31 Aug 2020 × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_991484 Cancel Copy to Clipboard ⋮ Link × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_991484 Cancel Copy to Clipboard Edited: Jayasubba Reddy Yarava on 31 Aug 2020 Thank you Stefan, your suggestion worked for me. Also I found now another solution which worked for me and is just that after starting MATLAB I switch to another program like Finder and let MATLAB start in the background. This was also mentioned here: Dave on 4 Sep 2020 × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_997156 Cancel Copy to Clipboard ⋮ Link × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_997156 Cancel Copy to Clipboard Yes, this was mentioned above, and it works for me. Easy but not very satisfying. Sign in to comment. Toby Driscoll on 2 Sep 2020 Vote 0 Link × Direct link to this answer https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#answer_488624 Cancel Copy to Clipboard ⋮ Vote 0 Link × Direct link to this answer https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#answer_488624 Cancel Copy to Clipboard Helpful (0) Helpful (0) For me the key was adding MATLAB to System Prefs / Security & Privacy / Accessibility. I'm running DFX, Dropbox, Google Drive Stream, and Spectacle–did not have to change those. (This is for release 2020a on Catalina.) 2 Comments ShowHide&nbsp1 older comment Stefan Baginski on 3 Sep 2020 × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_994744 Cancel Copy to Clipboard ⋮ Link × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_994744 Cancel Copy to Clipboard I did that actually before I've used the background start methodology without success, Best, S. Dave on 4 Sep 2020 × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_997159 Cancel Copy to Clipboard ⋮ Link × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_997159 Cancel Copy to Clipboard Yes, this did not work for me either. Sign in to comment. Griffin Willis on 7 Sep 2020 Vote 0 Link × Direct link to this answer https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#answer_491017 Cancel Copy to Clipboard ⋮ Vote 0 Link × Direct link to this answer https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#answer_491017 Cancel Copy to Clipboard Helpful (0) Helpful (0) This has been happening to me too, I've figured out a way around it by simply going into your documents and opening a matlab file from your folders to launch matlab that way. 1 Comment ShowHide&nbspNone Jon Sporring on 13 Oct 2020 × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_1056416 Cancel Copy to Clipboard ⋮ Link × Direct link to this comment https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#comment_1056416 Cancel Copy to Clipboard I just had this problem with R2020b (9.9.01467703) on macOS Catalina (10.15.7). It was solved by starting /Applications/MATLAB_R2020b.app/bin/matlab from a terminal (with full disk access) once. Now Matlab does not hang, when I start it from Finder. Good luck. Sign in to comment. Brett Tofel on 25 Oct 2020 Vote 0 Link × Direct link to this answer https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#answer_524113 Cancel Copy to Clipboard ⋮ Vote 0 Link × Direct link to this answer https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#answer_524113 Cancel Copy to Clipboard Helpful (0) Helpful (0) Same on bug on 2020a for Mac Catalina as with 2020b above, and same fix, but I remember this dumb bug from like 2018? This should really get fixed! 0 Comments ShowHide -1 older comments Sign in to comment. Guo Jack on 6 Dec 2020 Vote 0 Link × Direct link to this answer https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#answer_567248 Cancel Copy to Clipboard ⋮ Vote 0 Link × Direct link to this answer https://au.mathworks.com/matlabcentral/answers/480796-not-responding-on-startup-macos-mojave#answer_567248 Cancel Copy to Clipboard Edited: Guo Jack on 6 Dec 2020 Helpful (0) Helpful (0) I tried above advices but it's still not working. I found another solution from https://www.mathworks.com/matlabcentral/answers/501420-i-installed-and-activated-matlab-on-macos-catalina-but-it-s-not-opening This is what I did: 1) Open terminal and type (you need to change the version in the following command line) /Applications/MATLAB_R2020a.app/bin/matlab -nodesktop 2) Type “desktop” when matlab starts 3) Go to desktop matlab preference. Under "general", change the initial working folder to another one and it workded for me. I benefit a lot seeking solutions for matlab issues and want to thank you all in this forum. Hope it helps for y'all. 0 Comments ShowHide -1 older comments Sign in to comment. Sign in to answer this question. See Also Categories MATLAB Environment and Settings Startup and Shutdown Tags mac Products MATLAB Release R2019b Community Treasure Hunt Find the treasures in MATLAB Central and discover how the community can help you! Start Hunting! An Error Occurred Unable to complete the action because of changes made to the page. Reload the page to see its updated state. Close × Select a Web Site Choose a web site to get translated content where available and see local events and offers. Based on your location, we recommend that you select: . Switzerland (English) Switzerland (Deutsch) Switzerland (Français) 中国 (简体中文) 中国 (English) You can also select a web site from the following list: How to Get Best Site Performance Select the China site (in Chinese or English) for best site performance. 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