Steps to reproduce

1. Build an enclosed room containing a villager POI, any collisionless block on the ground (e.g. torch, lever, pressure plate, banner, fern, flower, etc.) on the ground in front of the door, and a block over the door, as shown in the screenshot below.
   
2. Spawn a villager on the other side of the door.

Expected result

The villager paths to the POI at the appropriate time.

Actual result

The villager gets stuck in the doorway and cannot pass by the block, despite being able to walk through it in other circumstances.

When creating a village, a torch was accidentally placed on the first block by the door on the inside of a house. Because of this, the villager whose work station was in this building could not pathfind to his station. He kept his trades, but abandoned the station. Other villagers locked onto this station and did the same thing, creating an infinite chain in which every villager ended up on the same station. Something with torches by doors really messes up villager pathfinding.