Some Villagers and non-hostile mobs are immobile & unselectable at times (within a village)...usually when the sun starts to go down.  Villagers will sleep in the air or on the outside ground or fly away sideways.  Sometimes the villagers fly away never to be seen again.  Some come back into their original bed.  This game is BROKEN....UNPLAYABLE AS IT IS NOW.

https://www.youtube.com/watch?v=6W49Q9UxrvY