Put the summary of the bug you're having here
I updated my device and all of my worlds were deleted
What I expected to happen was...:
Describe what you thought should happen here
I thought they would be there as normal, which is what normally happens after an update
What actually happened was...:
Describe what happened here
What actually happened was I updated and all of my world deleted themselves
Steps to Reproduce:
1. Put a step by step guide on how to trigger the bug here
2.
3. ...