Hello @mokmeister, 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/3841#issuecomment-1114831213.
proton experimentalx1 2022-05SDL_GL_Sx1 2022-05
Unity of Command 2 was running well using Proton Experimental under Kubuntu 21.10. However, since upgrading to Kubuntu 22.04 the games crashes regularly. The latest crash produced these results in log.txt:
INF 2022-05-02 13:29:38,437 tools.steam_api:230 Shutting down Steam
ERR 2022-05-02 13:29:38,442 uoc2-exe:24 Traceback (most recent call last):
ERR 2022-05-02 13:29:38,442 uoc2-exe:24 File "uoc2-exe.py", line 17, in
ERR 2022-05-02 13:29:38,443 uoc2-exe:24 File "E:\code\uoc2\uoc2\main.py", line 311, in main
ERR 2022-05-02 13:29:38,444 uoc2-exe:24 File "E:\code\uoc2\engine\ui\system.py", line 716, in main_loop
ERR 2022-05-02 13:29:38,444 uoc2-exe:24 OSError: exception: access violation writing 0x0000000000000054
based on the crash log, developer reports that the game crashes in SDL_GL_SwapWindow()