I recently moved to MusicBee, but I'm having trouble with multiple GENRE tags. For most of my collection, a GENRE value might look like this: "Metal/Hardcore". If I navigate to Multiple Genre Splitter in MusicBee, I can manually fix this by removing the old GENRE and adding individual ones for "Metal" and "Hardcore", but this is tedious. If I do this and go to Tag Inspector, I see that each genre tag has a Name of "GENRE", a Tag Code of "TCON", and a Value of "Metal" or "Hardcore". I can set this up easily for my whole collection via Mp3tag, but when I do so, MusicBee fails to acknowledge the multiple GENRE tags. I can tell because the song still appears under a genre called "Metal/Hardcore", rather than appearing under each of "Metal" and "Hardcore".
tl;dr: Does MusicBee rely on anything other than multiple GENRE tags with Tag Codes of "TCON" and different genre titles as Values? Setting this up via an external program does not seem to work.