While leveling up my Cartographer Villager, once I hit level 2, every villager in the area freezes and I can no long click on anything and time does not progress.  It's like my game is frozen but I can move.  I have to use task manager to exit and then pop back in.  and it takes me back a few steps.  It seems I should ignore leveling up villagers until you get all the bugs knocked out.