All the pets, animals, and villagers went missing

ALL of the pets, villagers, and animals went missing. The game never crashed and I always make sure to let the world save itself before I log off the game. Looks like it affects only one specific area (i.e. my village) as my tamed wolves are still there in the outer zone. This happened to 2 axolotls and 2 villagers in my trading hall before, but this time it messed up the whole area. Last night they were still there, but after I log back in this morning, they’re all gone.