Issue: Spotify Provider Errors when using "Developer Token Authentication" despite successful Auth Flow

[outofsight]

Hi,

I'm not sure if this is the right place to ask, so please let me know if it isn't.

Both Standard and Developer auth flows return "Success", but the provider remains unusable when Develoer authentication is used.

In the Spotify Dev Dashboard I cerated an App with all scopes, proper Redirect URIs, and the owner email added to "User Management" (not sure if needed).

Browsing the Spotify Music Source I see errors on "track" (401 and/or 403).

Removing the Developer authorization doesn't fix it. Only completely deleting the provider and recreating without Developer Token allow me to browse and play.

Music Assistant 2.8.1 as HA Add-on

[OzGav]

Spotify has broken support for new users. I assume that is what is happening here.