Which is an album (for this example). The same songs and the same playlist, and it’s recognised. Just to add, I’ve tried this with other 2/4 song folders, and they do not appear…
But, a folder with more songs, and it’s not recognised (if that is what you’re saying?).
Many early CD ripping programs automatically generated m3u files that were merely carbon copies of the album. When those text files were imported, Roon customers would end up with thousands of unwanted playlists. To prevent that, Roon ignores any M3U sheets that are exact duplicates, in the exact running order, of the folder contents.
Try changing the numbering of one or more tracks in the folder, so they’re not sequential, then generate a new M3U text file.
This means make it so a number is missing (as another user found out) and not simply rearrange them out of sequence – my take from this. This is why the example from the last picture in you original post works – only one track recognized. Roon Labs writes that they intentionally try to block playlists that are just listings of the files in a folder. Trying to make exactly such playlist work with Roon seems futile to me. Whatever solution you may find it may brake at any time later if Roon Labs changes/improves its detection code. Maybe official support may come back to you, but they may just tell you that it doesn’t work intentionally.
I just have old odd files in folders, but they’re not albums. However, they are still imported and dotted around the place. So I thought the best way to group them would be to create a playlist.
Maybe tags might be a better option.
It would be nice if this was an option to enable within the software so we can choose…