Thanks for trying.
I just updated to drivers 16.1.1, it doesn’t fix the problem. I’ve found another interesting feature of the bug which might lead to some clues. It can’t be captured by prntscrn or screen recording, so I Photoshopped a simulation of it.
When a UI window is on top of the game window in PIE, a border of 10 or so pixels around that window shows the game running behind it just fine. But in the rest of the window, it shows it as crashed.
At this point, this issue is so extreme and unusual, and with 0 other people reporting it, I don’t have much hope for it being fixed in this forum. Profiling wouldn’t help as UE4 is running fine, except it seems some video just doesn’t get pushed to the monitor.
Print screen and screen recording don’t show any issue, but just the pixels on the monitor are crashed.
Is there anyone at Epic that works with low-level graphics stuff that you could possibly consult? Any engineer who works with graphics drivers, things like that?