When attempting to play on the same save file on different consoles, some chunks will save and some will not. Then when you switch back to the original console, half of your progress will be saved half of it will not.

If you play a single player world on more than one console, progress will not be saved properly to the cloud.  So when you revert to the console with less progress saved to it, it will override your progress on the other console reverting your progress to nothing.  Thanks Mojang