Your browser does not support javascript (or it is disabled.) Please use a browser with javascript or enable it.We need javascript to function properly otherwise some things won't work.
That's strange.It may be some bug. What is that 'Main Sort'? Is it a virtual tag?
that sounds like a bug that has been fixedhttps://getmusicbee.com/patches/MusicBee33_Patched.zipunzip and replace the existing musicbee files