Yes, the entity count has been an issue in the past like the hoppin' toade said. There was a time when I wanted to battle the ender dragon, the end crystals would attempt to spawn the dragon like normal, the health bar appears on the top of the screen, and then the dragon doesn't spawn. I'd have to leave and come back for the dragon to be there then. Somebody spawned a bunch of snowman in the frontier end on smp5 and that was making the entity count reach the limit
