I have a villager which I cured from zombie, who is fixed in his pathway and tries to reach non-existing bed and workstation. I removed all beds and workstations and tried placing new ones, but he won't recognise them.
He tries to go where the old workstation (in this case a Lectern), was placed when he was first cured. I let him do this, replaced the Lectern, he finally worked, but I tried to relocate him and he went back to old habits, with the difference that now the same "fix" doesn't work anymore.
It gets weirder. He bred, made a baby, and the baby is following his exact same path! Neither of them recognise beds so they do not sleep, and now the baby is an adult, but he will not claim a workstation, although he turned into a librarian due to Lecterns around him.
I am having something similar, I upgraded from 19w09a and I have a librarian and a cleric that will not sleep or use their workstations and wander constantly. They never reset their trades.