Description:
When you start the hitting animation (in my case with an axe) and while this animation is in progress you press F5 button (the lay down) the character gets locked into a crouch position with an invisible 2h weapon in hands and there is no way to get out of this state other than re-logging. After re-logging, you are able to move again
Note: In the frozen state you can not move, can not look around (with and without alt), change stances or change any F action.