Yes, minors should be indicated with the dash.

In BiaB, if you change to Jazz Chords Font, you get those dashes, plus the triangle for Maj7, the little circle for diminished and the circle with slash for half-diminished.

The Flat problem may have to do with the Notations Options setting, "Use Chord Scale for Enharmonics". Whichever way you find it, checked or unchecked, try the other way and see what happens.


--Mac