Your system information

• Steam client version (build number or date): version 1766451605
• Distribution (e.g. Ubuntu): Debian 12
• Opted into Steam client beta?: No
• Have you checked for system updates?: Yes
• Steam Logs: broken pipe when trying to generate the logs, file or directory non-existent, error not recoverable, etc.
• GPU: NVIDIA GeForce GTX 1650

Please describe your issue in as much detail as possible:

I try to play Stacklands and get the message: "An error occurred while launching this game: Compatibility tool failed".

GitHub Copilot told me to get rid of "Steam Linux Runtime 3.0 (Sniper)" and then install it again.

However, the "Uninstall" button on "Steam Linux Runtime 3.0 (Sniper)" doesn't work.

The specific error from the terminal when trying to launch Stacklands is:

pressure-vessel-wrap[15281]: E: Could not create copy "./lib/x86_64-linux-gnu/libSegFault.so" from "/home/analista/.steam/debian-installation/steamapps/common/SteamLinuxRuntime_sniper/sniper_platform_3.0.20250929.168600/files/./lib/x86_64-linux-gnu/libSegFault.so" into "/home/analista/.steam/debian-installation/steamapps/common/SteamLinuxRuntime_sniper/var/tmp-4IO8I3/usr": fstatat(./lib/x86_64-linux-gnu/libSegFault.so): No such file or directory

The file libSegFault.so appears to be missing from the Sniper runtime installation.

What I've tried:

• Deleting ~/.steam/debian-installation/steamapps/common/SteamLinuxRuntime_sniper/var/ (error persists)
• Deleting the entire Sniper runtime directory and manifest file - Steam shows it as installed but won't reinstall
• The "Uninstall" button in Steam Library → Tools → "Steam Linux Runtime 3.0 (Sniper)" does nothing

Steps for reproducing this issue:

1. click "Play" on Stacklands;
2. get the error;
3. be sad.