Elemental Sundering Crash in Coop.

When my friend uses Elemental Sundering offscreen it crashes my game.

100%, tested and verified for me as well. Played all most of the weekend alone, NOT 1 crash. Play with my friend using elemental sundering I get DC'd EVERY TIME HE RUNS OFF SCREEN!!!! I've been LOSING MY MIND but we narrowed it down to elemental sundering for sure. - I have a recording if needed/wanted.

It seems to be tied to a certain distance from him too, if im on the opposite side of the map it's fine. But within 2 screens, every single time. It's instant, crash to desktop.

Edit: We just did another test, stuck together shoulder to shoulder, no problems, run off and uses it, instant crash to desktop.