Ever since I have owned by Echo Plus Stereo Pair (and Echo Sub) I have been able to ask Alex to 'Spotify Connect' and then the stereo pair has been available in my 'devices' list in Spotify so can I push music to them from the Spotify App. All of a sudden, this week it has stopped working. When I ask Alexa to 'Spotify Connect' the stereo pair no longer appear in my Spotify devices tab. This is driving me mad! I have tried the obvious things (turning them off and on again, rebooting my rooter) but no joy. I also have a couple of Echo Dots in other parts of the house and the Spotify connect functionality still works fine.....it is just my stereo pair. I have even tried unpairing my echos and repairing them again but no joy. Please help!