UE4.17 Crashes On Fullscreen

Hey people,
So I just imported a static mesh and a few textures from Substance Painter into UE4, and now when I press F11 to go fullscreen, the editor crashes.

One other thing I did was rename a folder, however it just created a copy of the old folder with no contents in it, and that folder won’t delete, even though there are no files in it (maybe the references didn’t update properly), so that could also be causing it. I never had this problem before doing that.

Here’s a DxDiag to make your life easier: [DXDIAG][1]

Here’s a log file to also make the staff’s life easier: [CRASH LOG BEFORE PROBLEM STARTED (CONTAINS REDIRECTORY ERROR FOR THE FOLDER I RENAMED - MAY BE USEFUL))][2]

Finally, here’s the latest log file (Not in crashes folder): [LOG][3]

UE4 wasn’t able to create a crash log for the actual event, however the latest crash log may be helpful.

For the time being, I will revert to a backup I saved last night BEFORE I renamed the folder. However I would still like to know how I could prevent this from happening in the future.

Turns out that reverting to an older save did NOT fix the problem.

Hey,

Ok i’m no expert in debugging, but I had a quick look at the logs and there’s a bunch of errors at the end, especially this one that caught my attention :

[2017.08.22-15.20.58:185][706]LogOutputDevice: Error: Cannot remove redirection from /Game/Assets/Meshes/Tech/ComputerMonitors/MonitorVideo.Default__MonitorVideo_C, it was not registered

From what you mentioned, you renamed a folder and I know UE4 can go weird if it can’t find folder names or assets. I have had issues where I couldn’t package because I renamed something in the editor folders.
Anyway I’m not assuming this would cause the F11 crash, but it would certainly help.

I would also try to reinstall your GPU drivers via DisplayDriverUninstaller and perform a clean reinstall and update to the latest drivers.
Try also verifying your UE4 disk cache via the launcher to fix any missing files.

Hope it helps !

Unfortunately, I’ve just been told that this is a known bug that can’t be fixed. They’re hoping to get it fixed in 4.18.

Unfortunately this crash happens for packaged shipping games on most Windows 10 clients. Many of our game testers have this issue, it seems to be a driver incompatibility of sorts.

I’ve personally never had this crash when doing this in the editor, and only once in a shipping build.
However the crash rate for Windows 10 users seems very very high.

I solved this crash by setting a 2 second delay before media player events on two different maps.