I have a weird issue where whenever I use up all the items in a stack (be it blocks or tools), the contents of some other random slot are moved there. Does anyone know what mod/"feature" this is and how do I turn it off? I'm aware inventory tweaks has an option that is supposed to auto-refill the slot with the *same* item. I turned it off to see if was that that was causing it and it still happens. Just to be clear, the new items I get in my slot have nothing to do with whatever I was using.