Icestorm + Frost Bomb crashes the game and closes map instances.

Hello, I tested this several times on King of the Mist and managed to reproduce this crash/bug consistantly every single time. It happens when Icestorm hits the boss and I cast Frost Bomb on top of him. The game immediately boots me back to the login screen and after I re-login, the portals to the instance are gone. That's about it, hope this bug gets fixed.

Same with firestorm