Villagers are struggling to pathfind through doors, usually resulting them just standing in front of the door instead of opening it, this seems to affect only adult villagers as babies seem to pathfind well.

Having looked at other results, I can say that this bug links purely to door usage, which means that villagers aren't pathfinding doors at all. Usually results in them bunching up near doors, without opening the door. This can greatly affect them being able to do jobs/to to the bell etc, but seems to be that baby villagers are unaffected by this issue