Sony NW-A55L - all folders are showing in Sony Music Centre for PC, but some of the folders I have created are not showing on the MP3 player - all the tracks in some of the folders (4 folders in total, and about 80 tracks) are displayed individually under Unknown (both under artist and album). The titles of the tracks and the artist are showing normally in the mp3 player - just not in any folder. I cannot play any of these as albums or playslists.
They are showing as albums on Sony Music Centre for PC, and when I tried following the instructions to create as playlists, the only options I am getting are delete, import to pc and properties. When I highlight the tracks, there is no option to add to playlist
The file types are Flac, and I created the folders on File Explorer
