I'm having the same issue in Photoshop, any resolutions yet?
It is also happening mid export in Premiere, if that helps pinpoint an issue.
Hi All. I think I have a fix to this problem and at least one other, which I have experienced multiple times, coinciding anew with each upgrade to PS 2020, starting in 11/2019 and occcuring again with version 21.2.0, issued in June, 2020. I have spent many hours with some very patient and helpful tech support people, and I mention Amit Kaul and PushPendra specifically as two of them. The fix, in a nutshell, seems to lie in file permissions. Before discovering this I had tried disabling hyperthreading in BIOS - nada. I reinstalled, reset, otherwise played with the performance settings in PS - nada. I checked and rechecked my video card drivers. No soap. Then PushPendra went into Windows Explorer (Win 10) and reset the permissions on ALL of the Adobe program files, in both the 64 bit and X86 program directories, as well as the common files in each program directory, and the all of the Adobe files in the Program Files directory. In each case he gave full permissions to all classes of users. Then we went into PS 2020 and tried selecting the subject and it worked over and over again. I reenabled the use of my graphics card using open GL on advanced mode. No problem. I also tried resizing photos using the preserve details 2.0 feature, which also crashed my computer every time. Again, no problem. At this point it appears that PS 2020 is finally fully functional on my computer for the first time. Thank you gentlemen for your efforts. I hope this information helps others. Good luck.. PLW
P.S. When I re-enabled hyperthreading I discovered that preserve details 2.0 crashed the computer again. Disabling it permitted that feature to work, so there is validity to that workaround.