The bug

Villagers in 1.14.4 will run around the village as if there is no shelter during raids. They may occasionally find a building but they will run out of it as if a pillager or zombie was inside.  At night when being chased by zombies, villagers will not run inside most of the time and instead run out into the wilderness.

How to reproduce

To replicate, find a village and start a raid or spawn zombies at night in a village without enough beds.