I was playing Saturday night or technically Sunday morning at about 2:00 am mountain time usa, and my minecraft just blanked out from what I think was an update. I say that because the rest of my computer was fine and operating normally and one previous time when minecraft went down like that when I pulled it back up the settings screen had changed. But I was riding on a horse I had just tamed out in the wild when minecraft went down and when I got the game pulled back up I was in a bit different location and the horse and Saddle were gone. I've looked all over the area and not to be found. What the heck is up? Thanks.
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Thank you for your report!
However, this issue has been closed as a Duplicate of MCPE-12347.
It has been linked to this report. If you have additional information, please add it to that report. (This issue might also be related to MCPE-8002)
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Possibly this: MCPE-16863
I had a similar issue the other day. I was on a boat, I went on the shore, attempted to break to boat to get it back as an item, the game crashed. Once I got back in the game, I was in the position I had been a few seconds before the crash (on the ocean), but with no boat... so I started to sink rapidly.