Game killing Bug with unbinding a key!!!!!

So i was playing a basicaly won game cuz of the gold advantage but i wanted to change a secondary key for my trinket to a slot on my gameing pad.So i changed it but it wasnt woking with smartcast as i intended.so i unbinded the SECONDARY key and the game bugged because i didint press APPLY.I my move button didnt work so did my esc and options button near the minimap.If you get this bug you fonced to move with a with is nearly imposible cuz u cant escape combat.Guys plis check this thing your self on a custom game and try to aplly the changes first to see if it buggs your game aswell.

Change a blanc secondary slot for an abillity or sth and after apllying it unbind it and there you have your game crashed.

Rito fix plis