After the 1.16.5 update, i went back to my world and saw all my animals including my dogs, cats, llama's, panda, fox, parrots, sheep, cows, chickens, pigs, horses, and even my villagers and naturally generated Iron Golems are missing. What's confusing about this is when i go outside of my house area, I see more sheep and cows, chickens and pigs. (i know they aren't mine sheep because i colored them all exocytic colors that cant be naturally generated, so if they did happen to escape, i would know.)  

i really hope this can get fixed, thank you