This issue was first reported in the very much unresolved and updated MC-264707. I decided to allow only 3 of my villagers to leave their home and see why they were disappearing I named them Anthony, Sally, and Joe. Prior to this I witnessed two adult and 1 baby villager fling themselves off from a high enough place to cause fall damage, but not high enough to die from in one fall. Well, the villagers for some reason decided once was not enough and went out of their way to return to the initial location of which they first jumped and jump off again repeatedly. Poor Sally for whatever reason decided to do this apparently as well and did so sometime after waking up. I'm not totally sure, but have some suspicion that the adult villagers are interrupting their work to do this. I noticed the baby villager stopped jumping on beds to do this strange behavior. I checked the logs after noticing Sally wasn't in their bed and it said they hit the ground too hard

My village is pretty spaced out and is completely enclosed now after discovering multiple villagers were wondering out to sea and choosing never to come back. I fear the villagers that are furthest away and never interact with the main part of the village are choosing to path find to the central location just to die because some of them have gone missing. Pease check the updates to MC-264707 please.