Villagers suddenly started disappearing from our villager trade hall, despite being leveled up from trading, having beds, workstations, lit rooms, and wooden trapdoors!!

villagers will get stuck on one profession block/bed, even if they do not have access to it.

Villagers vanished from their rooms, but their profession blocks still light up. I see particles lighting up at a distance from a profession block, like the villager was there, but it's invisible.

After entering and exiting the nether, and reentering a village that I have beaten a raid from, it does not give me Hero of the Village effect.

I cannot switch between worlds on my Minecraft realm.