I have been using 4.22.0 since its release, and it’s been working great (used mostly DX12/Raytracing with my RTX2080Ti), but since the 4.22.1 hotfix, UE is unusable for me. It can be fine for a minute or so (if I’m lucky), but after that, the screen turns black, I get some flickering tooltip boxes and nothing works.
As I said I have a 2080Ti, the drivers are the latest Creator Ready drivers (same as I used for 4.22.0), latest Windows 10 (1809 I think) and nothing else have changed except the update.
I hope there can be a new hotfix to fix the hotfix, cause I really can’t work with this. Other than this, I’m usually very pleased with Unreal Engine and think 4.22 was a great release until the hotfix.
It seems to work longer if I don’t open the content browser. I use two monitors and usually have my content browser on my second monitor, but in 4.22.1 I just get a copy of the main viewport on my second monitor before the blackness and flickering starts. Then after that it’s good night 
Here’s a dump of the crash log
