Game locks up if mission ends on ai faction turn

Does anyone else have this ? Its extremely consistent for me any time the last enemy is killed either by an ai faction or by overwatch during an ai turn the game locks up and wont progress or end the mission. I tried leaving the game on while i slept one night to see if it would resolve but i woke up to it still locked up. During this lock up all you can do is move the camera around with the mouse, escape does nothing, no menus come up. Quick save and quick load dont work either. Any way to fix this ?

Other than sending a bug report in-game via F10, I know of no workaround other than console command.