http://bugs.winehq.org/show_bug.cgi?id=58150
--- Comment #3 from Victini v_winebugs@outlook.com --- I am rescinding the following clause:
Also, sometimes MusicBee's monitor will immediately import the tracks, then think the tracks are gone. Doesn't seem to happen with native drives on Linux, neither does it happen with MusicBee on an SMB setup in Windows.
This has just happened to me on Windows! This seems to be a bug with how MusicBee is handling SMB/CIFS network drives in general.