Villagers attempting to become an armorer get stuck in the vanilla structure, unable to reach the workstation. I had two in my world get stuck in the same spot of the building.

Steps to reproduce:

1. Generate a new world
2. Locate a plains village with an armorer house and a villager
3. Observe the villager attempt to become and armorer

 Observed results:

Villager walks to the corner and walks into the walls

Expected results:

Villager walks to workstation and gets a profession