Thank you for getting back to me. Windows 7 with just UK English. Excuse my ignorance on how this all works. My understanding is that a playlist is just a text file with a list of paths of where to find the tracks on your hard drive. The file names of my tracks on the hard drive are correct, the track names in Musicbee (presumably taken from the metadata are correct) but, for those affected tracks, if I look at the details of these tracks using notepad in the playlist the names are corrupted.
By UTF-8 etc. I assume you are referring non standard letters or numbers. Musicbee playlist certainly doesn’t like album tracks from Bon Ivor’s 22 a million which contains lots of unusual characters, most of the names in an associated playlist for this album are corrupted. However, basic track titles like The BEATLES a Hard Day’s Night are corrupted to AÂ Hard Day’s Night. My guess is that other people might not be seeing it as they might just play the playlist and not actually look at the playlist itself and not realise these names have been corrupted and those tracks are not playing. In the Sonos app you can display the playlist and when you do and scroll through you will see some tracks are greyed out (because Sonos can’t essentially find them, because the path name to find the track has become corrupted). JRiver media center playlist has no problems. Is is something to do with how Musicbee converts playlists to m3U?