So I have seen a number of conversations about this issue on the net and decided to contribute to the matter while describing my own experience and seeking some assistance. Sonos Support so far have been rather disappointing in terms of time to and content of responses, though I am assuming that this is because I am dealing with Level 1 support personnel (those folks normally copy/paste replies and read from a script) though I guess I have had to start somewhere. In the end it is worth noting that I like the product, I am a big fan of it and use it extensively every day, each day, but the support is lacking so far... though I plan to persist and see how this goes.
So to begin. I am an IT professional with considerable IT experience (20+ years total with 10+ as Level 3 support). So, I would like you to assume that a certain logical process was followed here and this is not just a rant or a mistake of some kind.
I use a pair of Sonos Play:1 speakers to primary stream Spotify but recently, based on recommendations I have read I decided to upload some rare music (I collect Soundtracks) to Google Music Play (using free account) so that I can stream that music from somewhere (since it is not available on Spotify) back to my speakers.
The primary problem I am encountering is inconsistency in the Google Music Play browse feature. In particular, there is a difference in what Sonos Controller app sees (even within different sections of itself) and what Google Music Play (Chrome based app or iOS based app) see. The difference persists over time and full reboot (as in unplug the thing for 5 minutes from all power) of everything in use (speakers, routers, devices with controller app and... the kitchen sink) does not resolve the issue.
The following screenshots will illustrate the problem.
The below screenshot shows you how my Sonos Controller is configured where Browse section is concerned (in this case iPad Pro was used).
The below screenshot shows you what I can see in Albums related part of Google Music Play in Chrome app running on Windows 10.
The below screenshot shows you what I can see in Albums part of browsing of Google Music Play service on Sonos Controller app.
The below screenshot shows you what I can see in Genre/Soundtrack part of browsing of Google Music Play service on Sonos Controller app.
As I am sure you can see there are a number of issues here.
Issue Number 1: After Earth soundtrack appears in Google Music Play and is seen in Genre/Soundtrack part of Sonos Controller app browse but is not seen in Album part of Sonos Controller app browse.
Issue Number 2: Alien: Covenant soundtrack appears in Google Music Play without art (as per my wishes) and is seen in Genre/Soundtrack part of Sonos Controller app browse the same way, but in the Album part of Sonos Controller app browse it still contains art despite it being removed. Please note that the original uploaded music did not include art and while the music itself was matched by Google Music Play service I manually tagged all tracks as Incorrect Match and after they were re-uploaded I stripped the Album of any art within Google Music Play service itself.
Issue Number 3: Sorting mechanism differs between Google Music Play and Sonos Controller app implementation of Google Music Play. Specifically Google is smart enough to sort Albums starting with "The" accordingly (by discarding "The" when sorting albums) while Sonos Controller app browse implementation assumes that "The" is part of the actual name and sorts all albums starting with "The" as if they belonged under "T" where alphabet is concerned.
I have took some time to discuss this with Sonos Support via Facebook Messenger and in the end the support person on the other end run out of ideas and suggested I call Sonos Support (which I am sure will work out just fine since I live in Western Australia /s).
Last but not least I have also submitted diagnostics to Sonos as part of the troubleshooting process. Diagnostics Confirmation Number is: 440208453 and apparent Support Case Number is: 00055351
Any insight that any of you can offer would be much appreciated.
(this post was edited for clarity)