It seems that the vanilla mobs (aside from zombified piglins) don't spawn in any of the modded biomes often. It also seems that the skulls spawn way too much (once found 7 in one area), so maybe they're spawning so much it's not allowing other mobs to spawn in?
It seems that the vanilla mobs (aside from zombified piglins) don't spawn in any of the modded biomes often. It also seems that the skulls spawn way too much (once found 7 in one area), so maybe they're spawning so much it's not allowing other mobs to spawn in?