All my mobs disappeared

When I played yesterday in my main Minecraft world, everything was perfectly fine. I saved and stopped playing near my house. And when I came back today to play, I noticed that all my horses disappeared, even the one with nametag. I searched them everywhere but wasn’t able to find them. When I entered in my house, that’s when I noticed the problem. My fishes disapearred from their water tank, same for my axolotls. I had approximately 9 dogs and 12 cats sitting in my house. All gone. Same for my zombified piglin who had a name tag to. In front of my house, I had 15 bee hives full of bees. They’re all gone too. Same for the 7 villagers I moved next to my house in an underground house. My fox is the only mob left in my base/house. I don’t understand what happened, last time I played was yesterday, I stayed near my base, I saved and quit near my base, and today nothing left. It was so hard to bring them all to my base I don’t want to start again because of a bug.