I recently built Impulse SV's villager breeder and RayWork's iron farm. for the breeder villagers in Impulse SV's design I put nitwits there, I then opened my inventory and left my game on overnight. I woke up today checked my game and for some reason the nitwits are gone. the farmer villager and the caudron guys in the iron farm (IDK their official name) are OK  but the nitwits are gone. I then right clicked on two of the beds in the breeder cell and two of them said "this bed is occupied" so i slept and it still said this bed is occupied and there isn't even a villager there! Also it might have something to do with when I woke up and got to my laptop and closed my inventory there was quite a bit of lag and all my farms like my chicken farm and my iron farm and bonemeal and pumpkin farms were all running fine.