I noticed some people had issues with this a couple of years ago & didn't want to resurrect those threads. But I'm having the same issue. I've noticed it in Photoshop & Illustrator. I usually have to completely close and reopen the applications to make them re-appear.
Hi, I heard that the new MacPro Book 2016 Retina has those kinds of problems. Are you running Photoshop on a MacPro Book 2016? I believe that Apple is aware of this problem as Adobe. I do not know if they fixed it or not.
Nah. I'm on an iMac 2015. Although I've had issues with other applications not being quite compatible with the video card (AMD Radeon R9 M395X 4096 MB) in the past. So that may be it. Although, I've just noticed it since the most recent CC update.