at my gold farm on utopia, the swords from zombie pigmen are not getting sucked up by hoppers. they are despawning. As far as I can tell, other items seem to be working fine. If I place the swords in to the hoppers, they work properly, its just the "sucking" action that is not working.EDIT: It appears that nothing is getting sucked up by the hoppers. its like they are behaving as a solid block. manually placing items into hoppers still works fine, but hopper floors are broken at my farm. Is anyone else noticing this?