I am posting this after checking all the other posts related to this issue. After my speakers updated from S1 to S2, I was able to add the Music Library, but a lot of folders and tracks are randomly missing. I repeated this step at least three times with the exact same results. All files should be compatible and my library is under the maximum allowed limit. Please note that the main reason I had downgraded all my speakers to S1 was that none of these issues were present in S1. And I do not have time to become a test person for the SONOS technicians again, as it was the case years ago. Problem is, downgrading the speakers and adding the S1 system again is also a very lengthy process… Any solutions anywhere, after all these years?? Thanks.
