My silverfish spawners are not dropping any emerald blocks. They used to, but now they're not dropping at all. I know I don't have that many spawners, but I would like some help. I made a bug report about 2 days ago if not 3, and no one has gotten back to me. I haven't gotten a SINGLE block of emerald from them in over a week. This is a problem that I would like to be solved as soon as possible; thanks!