At least one song is missing from my Music Library in my Sonos system. Oddly, it used to show up and play just fine, but after "Update Music Library Now" completed re-indexing my music, that song disappeared from Sonos.
It's still in my iTunes library, and is right next to other songs that are indexed, but for some reason doesn't show up in Sonos anymore.
For answers to the questions in https://en.community.sonos.com/troubleshooting-228999/music-library-missing-tracks-5804453
Question 1: Are they being Indexed?
Question 2. Are they in the correct location?
Question 3. Are they in a supported format?
Question 4. Is the Library too Large?
My diagnostic confirmation code is 7718392