The Defold sound manager on mobile phones is designed to mute the music/sfx during an incoming phone call. This is the pretty much the expected behaviour of any Android app, and the way to detect an incoming call is to use the TelephonyManager. On older Android OS versions the READ_PHONE_STATE permission is required for LISTEN_CALL_STATE. On newer Android devices this permission requirement has been removed. And that’s why it’s crashing on the Grand and not your other devices.