Missing Album Tracks after track 9?

Just checked an album with 12 tracks.  The album is on my NAS.  I used the Album category in the 80.15.04- IOS app to open that 12 track album.  All 12 tracks were there and could be played.

what sounds weird, in your case, is the fact that double digit track numbers don’t show.  In MP3 Tag try tagging an album with track numbers starting with 10, reindex and see if none of the tracks for that album show.  You may want to try this differently by tagging the first track with 01 and the rest of the tracks starting with 10.  Then after a reindex see what shows.

I should have noted that it isn’t consistent across the library, I have albums of 20+ tracks that it does “see” and catalogue correctly. Whilst I haven’t checked every single album yet (would take a while!) I haven’t come across a common trigger for this behaviour.

I thought it might be compilation albums but the 3rd example I found was an album by a single artist.    

FWIW - the local library albums here seem to be displaying correctly with double digits (as attached) - the Track tag here is just set to 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13 etc.

Just to add (and I had not noticed this previously) if I browse by folders to an album, I don’t see any track numbers at all in that view, within an album itself, so there is probably something awry here ​@Editor. I think there is still more work being done by Sonos engineers on the local library too.

Ken:

Actually what I’ve noticed is if you see a track number listed with the track title it’s an indicator that the track will not play.  I think this was only when the track was in the queue, but I’m not totally sure since I have mostly cleaned all those unplayable tracks.  As I recall the album cover for those unplayable tracks was also missing.

All the other views in the app other than Folder do show track numbers.

Yes… there is work to do on the local library.  The first thing IMHO is displaying album art for local library tracks in the queue.  This is for IOS.

Yeah, there’s no doubt still a bit of work to do, including the issue around loading library playlists to a queue too. I also see duplicate Artists in the Sonos App search results, if the Artist tag is duplicated in the ‘Composer’ tag - I’ve resolved it by simply removing the content of the Composer’ tag in my library for now, but hope that gets fixed too.

Is there a full stop in the track name?  That can cause issues. 

No full stops but there are “,” “(“ and other characters but these also appear in other albums/ tracks that have been indexed correctly.

The plot thickens though, 

I have now come across

1 album that has 10 tracks in the folder but only 8 appear in the album view

1 album that has 23 tracks but only 10 appear 

so even the first “9 tracks” statement I referred to originally is not consistent !

In the folders there is a mix of album tracks where the source file name has a numeric track prefix and others where it doesn’t and therefore there doesn’t seem to be a link between this issue and whether a track has a numeric prefix or not.  

The fact that I now find that this is an 8, 9 or sometimes 10 track limit leads me to thinking that the media library scan logic has hit some sort of buffer limit or timeout issue during indexing. 

Here is an example:-

The original source on the NAS 

The Folder view on Sonos shows all 16 tracks in the folder correctly (the last one is there although not on this screenprint) : 

But the Album view stops after the 9th track.

It looks like all the tracks might be there in the 2nd screenshot.  It’s just that you are unable to scroll down to see them all.  When you select Play do only 9 tracks load into the queue?

Yes, in the Album view only 9 show and only 9 get added to the q. Hence you can only play the nine shown.

That’s odd!

The screenshot is from the 80.x IOS Sonos app.  It’s 3 Doors Down: Away From the Sun from the Artist category.  All 12 tracks show.  I looked at the Album view and it was the same.

My NAS is the SonicTransporter i5.  The folder structure is Storage - Music - Genre - Artist - Albums.  The tagging software is DbPoweramp.  Tags are Artist - Track title - Album - Track No. - Genre - Album Artist.  All other tags generated from downloads are removed.

I have made little progress in tracking down what causes this behaviour ; 

I have now stepped through roughly half my music library of 250 CD’s   approx (3500 tracks) and found numerous holes where 1 or more tracks are missing in the Artist and Album views although ALL the tracks appear in the folder view.

So far I have found: 

  43 Albums have missing tracks  (approx 18%)   

          These are all single artist albums so not the compilation album issue 

  2  albums have weird blended mixtures of track numbers in the artist view, I have no idea what causes this 

  I cannot see how these albums differ to the other albums that are catalogued correctly by Sonos, they are a mix of WAV, WMA, FLAC file types.  

I have used 

 -  MP3Tag to check all the album / album artist / track number settings and they all check out

 -  I have used two separate NAS system to check this out (one 5 years old, one brand new) and both systems generate exactly the same (incorrect) results within SONOS Artist / Album views  (deleting and rebuilding the SONOS library each time) 

There is no apparent consistency in what triggers this behaviour 

I did experiment with one album and converted everything from Wav to FLAC.  This resolved the issue with that one album but I really don’t want to have to spend hours converting my entire library. I also don’t know if this is a 100% solution and could use guidance from someone at SONOS.  I know that wav has limitations with tags  but this has never been an issue in the past (i.e pre Mar 2024). 

I can’t imagine that SONOS would want to put out a communique that you have to convert everything to FLAC to get artist and album views to work correctly and use MP3tag editor to resolve the compilation album problem (separate threads on this)..   

Neither of these two issues was a problem in the past,      

(This is a simple System of 2 x Play 3 and 1 x Play 5   ethernet connected)

Sonos newbie here so excuse me if I’m saying anything already known. I’ve had exactly the same problem where not all tracks show in the Album view but noticed it seemed to only happen when they were wav files. The only way I could fix the problem was converting them to mp3 files and then all tracks were displayed correctly.

Thank you for taking the time to reply,

In the end I did spend a weekend converting all my albums to FLAC and this has cured the missing tracks issue for me.

If you have a choice (and the disk space) I would recommend FLAC in favour of mp3 as it is lossless so you shouldn’t lose any quality from the original wav.