The Bug
Blocks may not be generated randomly in the mansion. Not one particular mansion is affected.
Reproduce
Seed: -370475412959196244
Coords: /execute in minecraft:overworld run tp @s -3486.56 78.31 1753.58 -41.85 10.65Attachments
Comments 2
I think you mean MC-213082 and MC-240221; the wall and misplaced ceiling images are not bugs (wall to outside vs wall between rooms, and ceiling to other floor vs ceiling to roof).
I can't find a report about the missing wall behind the illager head though.
Either way, next time, DrAlanWong, please only report 1 issue per ticket.
Dupe of
MC-110098