I edit an image by going 'Photo / Edit in / Edit in Perfect Photo Suite 9.5'. After saving the edit in Perfect Photo Suite, the image is not displayed in Lightroom. I have to synchronize the Lightroom folder to get it to display. Am I doing something wrong or is this normal?

I'd try reinstalling the plugins. I had hit and miss success with older versions of LR automatically re-importing, but the latest version has been working great. I'm referring to the general workflow though of starting with LR, editing in another app and returning to LR. I haven't tried it with Perfect Photo Suite.

There is nothing wrong with your workflow. The images should import back into LR. Since they aren't, I'm guessing it could be an issue with the Photo Suite plug-in, not LR.

In older versions of LR, you had to do a simple File Save, not a Save As, to get the auto import to work, but that's not an issue for me any more. If you are doing a Save As, you could try the Save method.