Description: Sometimes, filter hoppers either do not filter their items correctly. They either collect nothing or they collect everything, regardless of which filtered item is set or white/blacklist settings. Server: potato, haven't tried on carrot Expected behavior: filter hopper should accept only the set item on whitelist or reject the item and accept everything else on blacklist Steps to reproduce: Set a filter hopper to whitelist an item or blacklist an item. Sometimes they filter correctly, sometimes they don't. I haven't been able to find a way to reproduce the behavior on command. How long ago was the bug introduced? Unsure. I just started using filter hoppers.