Alright, so I recently have been having an amazing run, except i lost an arm, so i killed a doctor who was selling an enstatic (Probably spelling that wrong, too lazy to check) and replaced it, later, i killed another doctor, got another enstatic arm, and went to a different doctor and tried replacing my arm, all it does is unequip my gear in that arm, take my money and make scrap appear next to me, Is this a bug? Do I have to amputate the arm first?