Villagers/Cows respawning?


I am running on the latest spongeforge with only Nucleus as a plugin. I am running on the Mod pack “Perfect complex”

I have noticed some of the animals around our spawn keeps despawning? We had a few villagers we wanted to keep but they disappeared. They was in a good amount of light and no mobs could get to them at all. The same applies to some cows/pigs/chickens we had on our farm? I think name tagging them stops this but there is many animals and we don’t have enough. We came back and they was gone? it’s like they are being culled as its quite a big farm, anyway to disable this?

Thank you