I have had this a couple of times now. I have been fiddeling around with 2 guns. Mp5 in backpack AK in hands. at some point my mp5 showed as being on my back and being in my backpack at the same time. Resulting that I couldn't add my AK on my back anymore. I dragged AK to hands and I logged off. Causing the AK to be invisible. I cannot drag anything to my hands anymore. This means I will slowly die now.