Own character runs while being in the menu - (in coop game breaking!)

This is my most annoying bug I have currently.

Whenever I'm in the trials of chaos, sekhemas or whatever and going to my inventory or the menu, the character starts running!!! Really wtf.. runs into traps, monsters or whatever is there. Randomly in any direction.

Sometimes I see the gears loading still when I go back to the game to realize that I'm somewhere else on the map...

You guys have to fix this..