So out of the blue I go to my inventory and BAM, can't drop items. No, I did not touch the control settings EVER since I first mapped my comfort settings when I first got the game. I tried remapping over and over again, and the only way it works now is if I make the drop items a different button, which I don't want to. I have shout set to the square button and R2 as sheathe/unsheathe and have had it there forever. I'll play with it more tonight.