Looking at your code Blocks - are you sure that it working on Android 10? Using Activity Starter to ensure Bluetooth is enabled is fine, but App Inventor provides Blocks for permission requests, you do not need Activity Starter for that.
Looking at your code Blocks - are you sure that it working on Android 10? Using Activity Starter to ensure Bluetooth is enabled is fine, but App Inventor provides Blocks for permission requests, you do not need Activity Starter for that.