The villager in the screenshot I have provided refuses to become a cleric, despite the fact that there is a brewing stand in front of him.

I have waited several Minecraft days, and he hasn't taken the profession. I also tried replacing the brewing stand.

**I think the problem is that he is in the process of pathfinding to the barrels shown in the second screenshot, so he ignores all other workstations.

This is a bug because he clearly cannot make his way to any of the barrels. Therefore, the only workstation that he should be able to successfully pathfind to is the one in front of him.

I suggest making villagers give up pathfinding to workstations after 5 minutes so that they don't lock themselves out of professions like in this situation.