Bluetooth Explorer, could not scan and reported that it was not authorised for BLE ("Low Energy"). I went to "Systems Preferences" and authorised the app for "Bluetooth" access in "Security & Privacy". Now it crashes when I press "Start Scanning" to look for BLE devices. Has anyone a workaround to using it. It looks at first glance like Apple forgot to add authorisation for Bluetooth in it (but I don't believe it as it would never have passed their quality check).