EDIT: This happens only on the "zen" kernel kernel provided by "linux-zen" package, and doesn't happen on the default one. Still though, that's probably something to consider.

I'm playing on Arch Linux, and stan doesn't seem to work all that well. I can equip it and watch the idle animation, and a second or two later (I guess when the red circle appears) the game crashes with this error message:
https://i.imgur.com/ybMtxFT.png

Note that I can safely watch other people use it and nothing bad happens. It's only the viewmodel animation crashing me.

From that I guess that stan does some complex vertex geometry stuff, and that crashes the engine. Is there a way to do something to simplify stan's animations or otherwise prevent this crash?