I had collected and breed a bunch of cows, sheep, pigs and chickens. I was in the process of extending my farm and when I returned all were gone but 1 sheep, then that sheep disappeared too. Any one got any ideas on what happened?
It's a common bug since the TU7 (Title Update) release. There is a bug fix coming. You can check the official forums
minecraftforum.net for more information. The official bug reporting thread is
there as well. Happy mining!