In order to refer to projects less awkwardly, I will specify that the project where the notes don't appear on the Staff View is called BASS, and the one where they do appear is called STATELY.
With regard to BASS, I was wrong to say that there are notes on the MIDI track. They are on the audio track. In STATELY, they are on the MIDI track. I'm sure that explains the notes not displaying in BASS. I assume my mistake was in arming the wrong track when I recorded the parts. The Keylab represents my first experience running an external controller with CbB, and I'm still sorting out getting the routing correct. To this point, I always only used VSTs and composed from the Staff View on the MIDI track.
On BASS, if I try to drag the notes from the audio to the MIDI track, that conversion does not work, so I assume I will need to re-record those parts onto the MIDI track rather than the audio.
I have included a couple of screen shots from the Track View that shows the routing in both projects to aid in visualization.
Thank you for sticking with me as I work through this.