I'm putting chords in the key of Cm. If I switch the Roman Numeral or Nashville notation something weird happens.

If I have the setting in preference->display->show Roman numerals in relative minor, turned on everything is correct.

If I turn this setting off I would expect the cord numerals to now be in reference to the minor key.

They mostly are however some of them have a flat in from of them. Every chord that is flat in the key of Cm is this way. So Ab, Eb, and Bb which should be shown as VI(Ab), III(Eb),and VII(Bb) are shown as bVI(Ab), bIII(Eb),and bVII(Bb).

Is this a bug?