I've uncovered another clue here. I set this project up for tenor sax, reading Bb. When I set it back to C - concert the chords lay out correctly. when I "set visual notation transpose" that's where it gets weird. BB defaults concert Bm7 to Dbm7 instead of C#m7. I even changed the key on that measure to be in the key of A thinking that BB would logically display the Bb transposed notation in the key of B. I'd call this a bug, unless there is still some other way to override this.