Issues with Spotify on My Garmin Epix

I haven't been able to sync my Epix Gen2 with Spotify for a while now. It has always worked before.

Both the firmware (18.16) and the apps (Spotify and Garmin Connect) are updated to the latest version (phone and watch).

The watch is 100% charged.

I have Spotify Premium and when opening the app on the watch, I can correctly view playlists, recent content, etc.

When I try to sync, I always get a synchronization error, or the Spotify synchronization screen appears but remains stuck at 0% and then gives me a synchronization failed error.

I've read all possible guides, is there anything else you can suggest?

Many thanks