I was trying to generate a midi chords track for RealGuitar to use and I discovered that some of the chord changes from the chord track were missed altogether in the resulting midi.
Now I realize I could have the chord track play to RealGuitar directly, and when I did have it configured this way, all the chords were correct. The problem only appears when generating a midi through project->chord track->generate midi.
Since I’m a programmer I tried to box the error: changing the missed chord track chords did no good. Deleting the missed chords however, did the trick and allowed a correct midi to be generated.
So something internal to the chord track chords allows them to possibly be in error when exporting them to a midi, but otherwise the play correctly from the chord track itself into a selected track.