I'd welcome help about unexpected behaviour on some of my NAS-stored songs. I've reviewed everything appears to be correct as per this sticky: https://en.community.sonos.com/troubleshooting-228999/music-library-missing-tracks-5804453
Synology Diskstation with a share on it which Sonos has access to through a dedicated account. The music plays correctly from the share. Songs are in FLAC or MP3 format and have been tagged using MP3tag. Library includes collections of tracks that are not commercially released in specific folders which reflect the original source. Examples include subscription services I've used historically (e.g. DMC, Razor-maid) and non-commercial remixes and mashups (e.g. Soundcloud).
Songs that are located in any of the above collection folders don't appear if I search by artist name, even though they are correctly tagged. I can find them by song name, genre or by folder. Here's an example including path of one of the songs:
Path: //NAS-name/music/soundcloud/you should be dancing (walrus mix).mp3
Metadata Title: "You should be Dancing (Jojo Walrus remix)"
Metadata Artist: "Bee Gees"
Any thoughts on why they wouldn't appear under artist name? Thanks in advance