I was able to make the small changes necessary to get the pack from 1.21.1 or whatever it was to 1.21.4, but being unfamiliar with how minecraft commands and stuff actually work, I don't know how to fix this. In an armor slot or the offhand slot, if an item is supposed to drop, it won't and will be erased from existence. It worked perfectly fine in 1.21.4, but this happens now. additionally if i'm holding a droppable item in my offhand that isn't the same piece of droppable armor thats in my armor slot, the droppable armor in my armor slot drops.. sometimes?? i don't know.