I've now realised that I'm also unable to play Spotify on my Sonos Ones (in stereo pair) either and if I start Spotify using the sonos app and then ask what's playing via Alexa. it says nothing is playing
It still works for commands to control lights etc. Just not sound services.
I've tried removing the Alexa assistant from the sonos and from the alexa app and reinstalling it.
I also deleted my Spotify account from the sonos app and reinstalled it.
It didn't fix the problem
Hi @Iancas
Welcome to the Sonos Community!
I recommend you get in touch with our technical support team who have tools at their disposal that will allow them to give you advice specific to your Sonos system and what it reports.