Issue while recording modulation automation

Hi everyone !

I would like to record modulation on my Violin I part using my mod wheel on my keyboard; but for a reason I don’t understand, when I’m moving my mod wheel nothing happens + I can’t select only the write automation button, it automatically activates read automation too !

Here a video of my issue :

Thx for your help !

Ralph ♪

What is your instrument? Availability of parameters depends on the instrument, if no modulation is mapped nothing happens…