I did come across something similar, managed to sort it out somehow, I cannot remember what I did. However I recall that I did change something in the preferences (thought it was the harmony).

Could it be the "Output Chords on Channel"? I got it set off, as in the illustration below:

Attached Files (Click to download or enlarge) (Only available when you are logged in)
Screenshot 2022-02-15 131329.png (47.18 KB, 60 downloads)

Artur