I seem to have run into a problem. Mobs just aren't spawning anywhere. Last night they were working fine, but after I quit and turned it on today, they just don't work. My mob farm has nothing, and there's none of those pesky evolved endermen anywhere on my island either.
I'm no where near the entity limit, did the cofh killall command and it says no hostile mobs found. I can't seem to work out what happened. To try to solve the problem I created a new world from a backup from last week where I was 100% sure they were spawning correctly. Still nothing. I duplicated profile and still nothing.
Anyone have any suggestions to fix it? It's kinda boring with no hostiles anywhere (not to mention hard to get mob drops).
UPDATE: I created a new fresh profile and reloaded a backup save again to that. It then worked as expected. Interesting to note though, I figured maybe I could have my more current world back again so copied that into the new profile. It stopped mob spawns again in that world and also in the backup... Not related to save game but to profile. Something in the more current world killed it :(