Connected Spotify service shows up with language settings as German in Sonos??

Hi, 

I have my Sonos App language set as English / UK, my Spotify App is set to English / UK, my Samsung mobile is English / UK.

When i access Spotify App native, it is correct and text / titles are in English.

When I access the Spotify service from my Sonos App (embedded), it shows up with German or French headings.  If i then click the ‘pop-out’ icon to jump out the Sonos App to Spotify (native), the language headings are all English as I’d expect.  But close it down and drop back to the Sonos App view of Spotify and its German / French!?

I have checked every language option on Sonos App, Spotify and Android and even confirmed on a web browser log-in and its all flagged correctly for me, as English - open Sonos App and its incorrect.

Can anyone help here, user error or issue on the Sonos side?

Thanks in advance