On my server I have noticed there are no mobs at all. I only have a couple of sheep spawning in a certain area, but thats it. Also, whenever I try to set up a mob arena game, there are no mobs spawning, so it runs through waves without anything to fight. Lastly with mob arena, none of the class signs are working. Does anyone have help to fix my mob issue and mob arena? I have all mobs turned on in the server.properties, and in world guard, izone, and essentials.