Q:

Lightning Component as Quick Action not showing beside the buttons

I created a lightning component and a quick action that points to that component.
Now I dragged that button in the Salesforce Mobile and Lightning Experience Actions section and it does not show up at the top inline with the other button.
It shows up as a tab instead.
Anyone knows why? or is there something i did wrong or missed?
Thanks!

A:

This is a expected behaviour from salesforce when feed tracking is
  enabled for cases or work orders, the page-level action menu on those
  records contains only custom buttons and supported standard buttons.
  Quick actions appear on the Chatter tab.

workaround:-
So in order to not see the action in the feed on Case or Work orders object record, you need to disable the feed tracking for your case object.
Steps are:- setup--> feed tracking--> select case--> disable it and save
Reference:- https://help.salesforce.com/articleView?id=actions_in_lex.htm&type=0
Hope it helps you.

