Villagers are buggy in Desert/DesertHills/Savannah biome types

Villagers are very skiddish when introduced in desert biomes.

Valid homes can be created, villagers either spawned using Villager Eggs or cured from Zombie Villagers, will recognize and establish a village--however, they will run in and out of their homes frantically and group together day and night, as if there's always danger lurking nearby. As far as I know, this only occurs in Desert/DesertHills/Savannah biomes. Once set to Beach or similar dry biome, they behave normally.