I’ve read all over the place and as far as I can tell, once a villager reaches level 2 they shouldn’t change profession. In my world we have a massive city with buildings and market stalls built for different things, and prior to this update villagers to go with them. Now though the villagers seem to be mixing and matching to their hearts content and assigning themselves to new blocks all the way across the city, if you could make the profession blocks be proximity related to villagers and a cut of change to villagers above level 2 like it’s stated there suppose too then I feel this will fix the issues here.