protonscr

UE5 Ensures Closing Game

protonopen
ValveSoftware/Proton#8772 · opened 2025-06-05 by nickdarnell · updated 2025-06-05 · 0 comments · github
Nnickdarnell 2025-06-05 github

Using proton 9.0.1, on steamdeck. We're seeing Development builds of a UE5 game closing down whenever ensures in the code are encountered. Normally the engine's configured SetUnhandledExceptionFilter handler would be triggered, and the ensure would be logged, logs flushed etc, if no debugger was attached, but when run through Proton these games close immediately.

Is there a way to avoid this issue (without compiling them out). Ideally it would continue to work like windows.

Proton versions