Using Arc weaponry will probably make the game crash. Arrowhead has confirmed this and is working on a patch. Release window is early next week.
No Arc thrower, Arc shotgun, or Tesla tower until next patch.
… Reminds me when emoting on Vermintide 2 would crash the game…
Yep I crashed when nobody was using arc weapons. So it could be something else that is causing it that the arc weapons just happen to expose quicker.