Sonic X Shadow Generations crashes instantly with mod loader enabled (Linux/CachyOS)

Completely fresh install of both SXSG and HMM 8.0.0, tried deleting and regenerating the proton prefix, no mods or codes enabled. Tried Proton Experimental, GE, and 10.0-20260101 Game crashes after opening a tiny copy of the game window in the top left corner of the screen for a fraction of a second. No option to save a log file is given. Game has no issues launching as soon as the Mod Loader is disabled or uninstalled.

Running CachyOS 6.18.6-2 64 bit, and KDE Plasma 6.5.5

-Edit-
Tried again after some system updates. Uninstalled the mod loader, deleted the Proton prefix, regenerated it, successfully launched the game as normal, then reinstalled HMM's Proton runtimes followed by the mod loader. Even tried both the Flatpak install as well as the unofficial github package. Still crashes instantly. Forces and Frontiers both launch without issue.

Reproduce the crash with Sonic X Shadow Generations and Hedge Mod Manager 8.0.0 on CachyOS, first with the mod loader enabled and then disabled. The issue is resolved when the game launches normally with the mod loader enabled, including after the Proton runtime and prefix setup described here.