All right thanks
https://drive.google.com/open?id=1Zy2Kd0rEonvTOEi30yMTSdLarJDYg0UA
Let me know when it has been downloaded so I can take it down.
If you have another way to share the file I am up for it.
I do, but it is too large for your file sharing at 538 MB.
The comment is for the devs to implement a fix for the bedrock version which includes xbox and windows.
The fix for V1.6.1 windows 10
make a new world with the same name and same settings (this is important) as the world you want to recover
save and close that world
goto %appdata%Local\Packages\Microsoft.MinecraftUWP_8wekyb3d8bbwe\LocalState\games\com.mojang\
you will want to go tominecraft worlds the folders in here are named with gibberish but if you remember the picture for the worlds (the newly created one and the old one) the .jpeg file will be in those folders. Use these to find the proper worlds
You will want to move these files from the new world into the old world (make a copy of the old world onto your desktop just in case)
level.dat
level.dat_mcr (this file may or may not be present if it is not there ignore this file)
level.dat_old
open the db folder in each world and copy this file
session.lock or LOCK (it will be named one of the 2)
if minecraft is open close it and reopen it and the world should be restored if all the steps where followed correctly
This could be done in code in the game which would involve making a backup copy of the files mentioned so if the corruption occurs then it can load from the backup files.
I am experiencing this issue with horses spawned via skeleton trap. I have about 10 none of these are ride able anymore. I can provide a copy of my world for reference although you may already have it from the disappearing world bug a little while back. I can provide a new copy via google drive just let me know.