Hi!
I’m exporting sketches to mp3 to sending to clients and for sketch archive and meet this failure - using Cycle Marker Selection, which activates different Naming Scheme than other mixdown situations, exporting to mp3 does not use Naming Scheme. It puts the same name into ID3 tag of all exported files. It’s the name that is written into MP3 tag editor, while the file name is arranged correctly according to Naming Scheme.