happened more than once but only posting about it now cuz its only now made me mad.
if anyone has any remote idea whats causing problem -
whenever i try to pick up a quest item randomly 1 i in a million of times i have to physically pick up a quest item and only quest items
WASD and mouse look stop working i can still use my inventory, shoot, mag inspect and that stuff just cant FUCKING MOVE 
big thanks will be awarded to that who finds my problem...