On my realm only noticed here since it's where I spend most of my time. I have started having issues on all 3 platforms where my sheep no matter the number are disappearing. When they do they take fences and other livestock that are close as well. They leave mutton, sometimes even cooked mutton. Its becoming an issue for doing any farming with sheep be it for wool or food. I know this is a bug rather than anyone else killing and destroying as I have removed all players accept for me for a day and it still happened. I will walk away for a while and when I come back sometimes the sheep and fences are just gone sometimes they remain. I thought might have to do with my auto shearing pens but it happened to some that were just fenced in and others set in a one block hole for food production. All of them vanished.