Spotify and Sonos are marketed togheter as a multiroom-streaming-solution, where you can "enjoy different tracks in different rooms". This has been true up till lateley.

Now, when starting a second spotify track in another sonos zone, the playback of the spotify track in the first zone is stopped and sonos shows a message saying "..spotify is limiting the number of simultaniously audiostreams.."

When did this change?, and why hasn't Spotify and Sonos changed their marketing? It is anyhow a drastical change in service quality..

Spotify marketing:

https://www.spotify.com/uk/sonos/

0:40 - 0:45 minutes into the video: "..you can enjoy different tracks in different rooms"