Use Android 11 Device !

1. When you delete minecraft and again install minecraft 1.17.30.20 Beta . A issue is occurring when you change your world type to external. Then,it crashes when you tap on create world or it would just say , , , ,"there was a problem loading this world".

To reproduce -:

1. Uninstall minecraft and reinstall latest beta.
2. Open minecraft and choose world type external.
3. Create new world .
4. It will crash or say,"there was a problem loading this world".