I've lost my donkey from my res, it had valuables and everything with it! I got off it, and after a while it tp'd back to my res. I then forgot about it, causing it to roam free. I have other horses, so I got on my fastest one and searched almost everywhere. I couldn't find it. I thought there was a chance I was glitching or something, but no such luck. I even got a few of my friends to help me look far and wide, and none of us could find it. If you find it, PLEASE respond to this forum post, or tell me in Minecraft chat.