So I've found out that villagers do not pathfind over campfire ( Unlit ), they just get stuck there.
How To Recreate :
1. Put down a few campfires and make them unlit
2. Now place a few block that villagers can pathfind on the unlit campfire(s).
2. Spawn a few villagers, Now you will see that will eventually make their way on to the campfire(s)
3. Now you will see that the villagers will get stuck.
Thank you for your report!
We're tracking this issue in MC-157645, so this ticket is being resolved and linked as a duplicate.
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