The bug seems to be related to Beds. I had a few tool smiths at master level inside a well lit and sealed building. They just vanished. Their work stations were occupied, but they were no where to be found.
I removed the beds from their area and so far the villagers are still there.
The problem is now that villages are dependent on beds it makes creating more very troublesome.
Brendon Biegel
The bug seems to be related to Beds. I had a few tool smiths at master level inside a well lit and sealed building. They just vanished. Their work stations were occupied, but they were no where to be found.
I removed the beds from their area and so far the villagers are still there.
The problem is now that villages are dependent on beds it makes creating more very troublesome.