Are there any known issues with hostile mobs spawning. I am using a 3x3 tunnel with vector plates pushing mobs to a drop off tof get killed. It was working great and I had been busy at work for a few days and without changing anything all hostile mobs stopped spawnin. I was just checking in and sometime yesterday they quite spawning I am running my world on a server v3.0.1 with a chunk loader keeping things going when I'm not around. I have only changed keep inventory to true and mob grief to false