Yeah i have noticed that aswell. All i have been doing for that is closing one of my item slots which i dont really use but I'm still crashing every now and then on item use.

Yeah i have come across this a few times. What I have done to get the item (thats if it's at the top of the locker) i have put my crosshair on it and jumped. It seems to work for me. You can normally see the item after that in the menu or you should just be able to pick it up.