Thanks to all of the replies! But I will try to answer all of your suggestions and questions. I did have a nametag on one of my horses, he is gone too. The pen they were held in were 3×3 and 6 blocks tall. I know they didnt suffocate because you can suffocate in a fence block. And if it was because of the ‘rollback’ then, thats just my luck, but I still have the same money I have after I bought the horse, and I bought it off a person, not as an egg. Also, our town did have a lot of other horses and stuff. But our cow pen had been taken out before they disappeared, so it probably wasnt the animal limit in effect. Again, thanks to all for the replies, I hope this ‘problem’ gets fixed