Chunk errors and save error, cloud saves xbox

Reloading a cloud save cause chunk errors, missing chunks just general corruption to worlds. It seems to me that the cloud saves are not being updated properly only saving chunks that were edited in a previous save, any chunks that were not edited have been deleted then restored with new chunks from the new world generation algorithm sometimes not being replaced at all only leaving void spaces.

Provided is a before and after notice how much of the temple has been reverted to the original blocks and that the local terrain is no longer an ocean biome, it's completely screwed with every single save I have, this is only due to my Xbox deciding that it was complete reset time.

Also the this is 1.2.0.20 it wouldn't let me put it down as that