This game has two versions (original and XXL), and both work fine with Proton 10.0-4. With Proton 11.0-2 (and experimental 2026-08-28), just the original works (XXL crashes when you start the campaign). Proton logs: [ste...
My guess is the engine parser failed, probably somewhere in [here](https://github.com/FNA-XNA/FAudio/blob/master/src/FACT_internal.c#L1964). Would have to put the .xgs file through `facttool` from the FAudio utilities to...