Hi @Slak_Jaw,
Yes! This completely solved my problem, so many thanks for diving into it so thoroughly. I really can’t thank you enough. 
I had actually looked into this myself to check for any overlap, but obviously didn’t catch it. That’s probably due to the overwhelming list of MIDI commands for a controller stacked on top of each other.
This did inspire me to submit this feature request last week, which would make the MIDI commands much easier to navigate. (Hopefully, that becomes a reality at some point.)
Also, I have no idea how those extra lines got in there, but it would be great if djay had some sort of check to automatically prevent duplicate or unnecessary entries.
Anyway: so happy to report that the left loop pads are blinking now, so I’m all good. 
