Villagers keep switching workstations

After a few in game days, my villagers seem to always change their workstations, even if there is a workstation right in front of them. They do not update accordingly so I have to break and replace workstations. 

This is a temporary fix as they change workstations the next few in game days. I have the villagers in a 1x1 cubby with a workstation in front of them.