Songbook midi message

[Tomotom56]

I have set the Geno's external controller to receive a note on message which activates the song position pointers. I then set the Songbook action button to send that note on message. The action button works fine changing the song position pointers BUT it also sounds the note! Which I don't want of course. I'm using iPad pro 12.9 and the USB2 connection. Is this some sort of midi loop? Geno's or songbook problem? Any ideas appreciated.