Game Crash Deletes World

My Better Together version of Minecraft is CONSTANTLY crashing my XBOX ONE or Not Saving my game while i play. But now it has begun to get even worse.

Now every time my minecraft Better Together game crashes, it usually has a high chance of Deleting the World i was playing when it crashed....

UPDATED INFO BELOW
I have now discovered that my game also Crashes when i try to /clone, it even Forces my Xbox into a Hard Reset mode.