Black screen after a while (Linux)

[TheGloriousCooper]

Hi!

I play Shadow Tactics on Linux:
* Mint 21.3 (5.15.0-107-generic)
* GeForce 1080Ti (nvidia-driver-550)
* 4K / 60Hz
* AMD Ryzen 7 5800X
The game runs smooth and clean, but at some time, sometimes after <30min, sometimes after a couple of hours, the map gets black. The HUD and the game menu still works fine, so I think it must be game related. Then I can close and restart the game and everything works, as nothing happened. Did anybody encountered the same behavior? I tried to swtich to Proton 9.0, but the game stucks and shakes there, so I turned that back off again.

I'm totally new to debugging games, so I need your help finding the files I'm searching for.

.steam/steam/steamapps/common/Shadow Tactics/Shadow Tactics_Data/output_log.txt

looks fine to me (no "fail" or "error" found), same goes for syslog.

Thank you in advance!