https://bugs.freedesktop.org/show_bug.cgi?id=99923
--- Comment #44 from Alex Smith asmith@feralinteractive.com --- We released a game update last week, which includes a workaround for the out of bounds array access in a shader that was triggering this issue (thanks to Nicolai for giving us the details). That should fix the rendering issues without having to update LLVM or wait for a backport.
Obviously the game shouldn't be crashing for you after the update, if it is please contact support@feralinteractive.com so we can look into it.