Hi @Watfordslim,
I did have a look into that thread where other users are experiencing the same issue as you, having only one track play. However, they are all using different playback methods, such as Tidal, Apple Music, Deezer, or even starting playback from a voice assistant. While the outcome is the same (Sonos stops after only song), these varying factors make it hard to pinpoint what is actually going wrong without looking into the system itself.
I use Spotify on my system and haven’t had this issue occur. My colleagues, and a community user in that thread you linked, also couldn’t replicate this, which is why I suggested a diagnostics and to contact support.
The agent you were chatting with had troubleshooting steps they could have performed with you. If you weren’t able to perform them at the current time, your case would remain open until your issue was resolved. However, since you have sent the Era 100 back, there isn’t anything I can do to troubleshoot this issue further.