Villagers Dancing on the rock stairs

What I expected to happen was That the villagers will go to their home and walk up to the stairs.

What actually happened was that the villagers was dancing around and they stopped for like 3 sec and continued

Steps to Reproduce:
1. Go to the village in the seed 1836224481 and look in the area for the village
2. Go to one of the villagers houses and look at the villager when he is on the stairs
3. Then you will see him dancing in circles