I found this bug that if a villager is on a bed and another villager wants to go OVER the bed and nudges the other villager, the villager will fly out of render distance. I noticed that this was a visual bug, but when you try to make them come back by breaking the bed the entity will be there, but the texture will not, giving you this kind of invisible villager, it is fixed if you fly to the direction that the villager took off and come back or if you exit your world and open it again, as I mentioned, it is a visual bug, but working with villagers is already annoying we don’t need invisible villagers