Verification builds:
1.2.2.3 (ipad pro)

Summary:
Game crashes when locking the ipad in the world selection screen, and then returning to the game

Repro Steps:
1. Start Minecraft (ios)
2. Go to world selection screen
3. Lock your ipad (note: simply changing application does not trigger this)
4. Return to Minecraft

Observed Results:
Game crashes

Expected Results:
Game remains stable at all times

Screenshots/Videos attached: No

Notes: