I'm a little bewildered at what is going on, but it's probably something much more simple than I imagine. So the first 3 rows in the first screen are clickable, and they work, but once I fulfill the block request, they don't do anything anymore, even when I remove the items from slot 1. I think it is probably something to do with clearing. I can't seem to figure out where though

http://pastebin.com/CGgRZvFt