It is not working, still stuck with the same problem. Everything works but when I change from one parameter to another one it send a value to the one I was on.
I also tried to put null message before the NRPN chain but always the same.
I try to make first going to the parameter without touching the value then modulate it but can’t understand how to do that…
Maybe I should do it with a sysex command but I catch nothing to it…