Update:

I identified the broken button. If i just press a track within the playlist the behavior is as I described above. The same applies if I press the play button (marked with an x in my attached picture). 

If i use the (...) menu and choose to play the track from that menu the queue appears as it should. 

The play button from Spotify source is obviously broken. 

I am experiencing the same problem.  Choosing a Spotify playlist or song from within the Sonos app does not create a queue.  The queue indicates that the session was started from Spotify.  It appears to be limited to Spotify. 

Exact same thing happening to me. iOS l, last Sonos app version installed (80.07.03 release+20240819.7fd7da0dd)

I would recommend that you submit a system diagnostic within 10 minutes of experiencing this problem, and call Sonos Support to discuss it.

There may be information included in the diagnostic that will help Sonos pinpoint the issue and help you find a solution.

When you speak directly to the Support staff, they have tools at their disposal that will allow them to give you advice specific to your network and Sonos system.

Omg this has been driving me nuts for the past two days. WTF is going on

Even the 3 dots button you’re suggesting using is not working for me. This is driving me nuts because I can’t play two different streams and two different rooms at the same time now because of this issue

Even the 3 dots button you’re suggesting using is not working for me. This is driving me nuts because I can’t play two different streams and two different rooms at the same time now because of this issue

Are you using Spotify connect? (Started play from Spotify app?)

Is it not working for you do this in the Sonos app:

1. Select room 1 (Swipe up from bottom for System Controls/card)
2. Search for music and Replace Queue or Add to End of Queue (this should put the playlist/album/song to the queue)
3. Swipe up from the bottom and select room 2
4. Search for the other music and put that into the queue

I’m able to play two different queues. I don’t think it’s possible to do that with Spotify Connect. 
 

I have had the same issue on iPhones and iPads since a couple of days ago.

I have been through Sonos support, submitted a diagnostic, uninstalled and reset everything including the Sonos app and the Spotify account in the Sonos app.  I have reset my Spotify subscription on the Spotify website.   I have restarted my router.  I have restarted all my Sonos devices.   I have done all these things in different orders and am now sick of the whole thing.  

I’ve had Sonos kit for many years and have continually upgraded to the latest products.  Following the release of the new Sonos app I cancelled an Amazon Music Unlimited account because Sonos could no longer load anything successfully.  I moved to Spotify Premium and this worked reasonably well over the past three months - albeit with none of the features such as queue editing that are yet to be re-introduced and continual problems with Sonos Favourites. 

The only saving grace is that the Sonos app on a MacBook laptop continues to work perfectly with Spotify and other services.   I really hope that Sonos doesn’t mess around with this app.  

Spoke with Sonos support regarding this issue. (Playing separate streams from Spotify on different speakers) Told me that Spotify do not allow it due to license restrictions. I’ve been doing it for years without any issue. Absolute bull from Sonos and their Crap new app and crap support. They don’t even know the use cases for their own speakers!