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Has anyone else experienced this issue?  Many music files which I have played successfully over several years have now mysteriously vanished.  Two albums which I played only yesterday have now disappeared.  I bought into Sonos a long time ago so use the Sonos1 app on both my Mac and iPhone and despite refreshing / indexing the library they have (along with numerous other albums) completely gone.  They are still there in my iTunes library on my Mac but Sonos has stopped “seeing” them.  Any ideas?  Thanks.

Was the OS on your Mac updated? Do you have auto updates enabled?


No, the OS hasn’t updated (still Sequoia 15.6) and I haven’t updated to the newly-offered 15.6.1 for the reason that there is always an issue after updates.


Hi ​@Philip Cole 

Thanks for your post!

I am sorry to hear of this issue you are having with music going missing from your Music Library. 

My assumption would be that this has something to do with the files themselves, but it’s difficult to say.

I recommend you get in touch with our technical support team who have tools at their disposal that will allow them to give you advice specific to your Sonos system and what it reports.

I hope this helps.


Thanks Corry.  In fact, in a moment of desperation as I felt I had nothing more to lose, I updated my IOS from Sequoia 15.6 to 15.6.1 (something which is usually guaranteed to muck up all my files) but on this occasion it seems to have put everything back in place.  So thank you for your advice but things seem to be OK.  Let’s hope they stay that way!


My thought is that there is something different with respect to the file format, names, or location for the problem files. Are there any special characters in the file names? I can’t explain why the phantom struck suddenly.


At a guess I would say its the infamous “local network” permission, which has a life of its own. Updates often secretly disable it, but here it appears it might have secretly enabled it, which was a win for the OP.