Miao Miao not showing in xDrip Bluetooth Scan

[Fantastic]

Hi, I've just received the Miao Miao 2, I have connected it to the sensor and downloaded the xDrip app on my Motorola Moto G5, it is showing as connected when I go into the xDrip system status but not showing when I go into Bluetooth Scan. If I put the phone on airplane mode for a minute or so then turn it off and go back into the xDrip menu it shows up in the Bluetooth Scan but doesn't actually scan. It then disappears again. Can anyone advise me of any phone or xDrip settings that I may have done wrong or any other suggestions. Thanks