I had this issue recently, had to re-install mesa, lib32-mesa, mesa-vulkan ect but it worked fine after that. I have an RX 580, but try re-installing/updating your Nvidia drivers? No idea what caused it.
Hello @DoubleRHR, we're using one issue report per unofficially supported game title, so I've gone ahead and transferred this issue report to https://github.com/ValveSoftware/Proton/issues/2476#issuecomment-593947284.
@wantija, can you post your exact steps? having the same issue.
proton 4.11-2x1 2020-03proton 4.2-9x1 2020-03
Compatibility Report
System Information
Gist here
Hi, recently my game has stopped launching at all. Usually I force it to use Proton 4.2-9, but that has just stopped working. It does not work with other versions of proton, and only started acting up once proton 5 was released.
Occasionally a unity crash screen (attached) pops up. When Proton 4.11-2 was released I had the same issue, but fixed it by using 4.2-9 instead. The application never stops displaying as "currently running" unless I manually kill it--the game hangs indefinitely. I have verified the file integrity of the game, and have cleared the download cache. I have also tried restarting my computer, logging out of steam, and uninstalling/reinstalling the app.