Put the summary of the bug you're having here
What I expected to happen was...:
Farmer villager not disappearing, when there are blocks all around him.
What actually happened was...:
He disappears once in two days. (Third time now)
Steps to Reproduce:
I have built this farm:
https://www.youtube.com/watch?v=q0bq-RnttBU
Second level farmer keeps disappearing.
Duplicate of MC-153904