`sh: line 1: /home/hoff/Steam Library 2/SteamLibrary/steamapps/common/SteamLinuxRuntime_4/_v2-entry-point: Permission denied` is the line to focus on. I'd double check how the partition with the secondary library is mounted, in particular if it's noexec or if the regular user has permission issues there.
FYI All, we are now at feature-parity with Windows on regular Experimental as of the release today (8/28/26)! Game starts after the launcher, right to the Rebellion logo (no 30 sec delay), and can be successfully Alt+Tab...
> [@Hoff16](https://github.com/Hoff16) [@TechniKris](https://github.com/TechniKris) Thanks all for the good info and persistence. If you get a chance, could you try Proton Experimental Bleeding Edge for the alt+tab input...
@Hoff16 @TechniKris Thanks all for the good info and persistence. If you get a chance, could you try Proton Experimental Bleeding Edge for the alt+tab input loss issue? There's a fix in BE that works on my end.
Apologies for the incoming wall of text but here is a summary tests I've run over the course of the past month regarding this issue. See Below: Sniper Elite V2: Fullscreen Alt+Tab Causes Complete Input Loss Game: Sniper ...
I am seeing the same thing @TechniKris, it seems that this Alt+Tab issue is actually a regression that we never noticed. With Proton 10.0-4 I do not see the issue and its possible that it was working with Proton 11.0-1. ...
The alt+tab input issue still occurs for me, on both Experimental and stable (11.0-2 as of now). But aside from that: I confirm that with Experimental the game launches flawlessly; with 11.0-2 it still requires the `WINE...
FYI all as of August 21st, 2026, Proton 11.0-2 includes the fix for the 29.999 second black screen before the Rebellion logo! `CEG-using games should no longer take extra time to start.` Looks like the startup fix has no...