It would be so much easier to explain these problems if you could post screenshots from the songkong report itself rather than random music players. But looking at the Radiohead example it seems there is no problem, it looks like SongKong has identified the three separate releases correctly with Fix Songs but the rename mask you have chosen doesn’t include anything to distinguish these releases so Rename Files put them in same folder. You could either use the Add EP, Single, Compilation, Live and Remix release types to release title or Add Audio Format to release title options on Album Format tab to modify what SongKong stores as albumname so that when rename files the three albums will have different values for Album and thefore be stored in different folders
Although we don’t currently have option to add disambugation name to the album field, which might be useful to you https://jthink.atlassian.net/jira/software/c/projects/SONGKONG/issues/SONGKONG-1835
Or you could modify rename mask to use extra information to change the filename without changing the metadata, the albumversion field is useful this stores the album disambuguation if it has one in MusicBrainz.
With Aphex Twin example you just seem to be asking why its isnt displaying Promo at the end of the track title, but why would it the track title doesnt include Promo at end. Or are you just saying why isnt it displaying as two albums like it did for Radiohead ?
Well because I cannot see the metadata in the files (because report missing) and because I have never used navidrome I cannot give you an answer on that.







But totally worth it for now to at least have a clear, poper sort of all these “different / same” albums.




