Digitone CC triggered by ableton toggle/untoggle group

I have connected my digitone to ableton, and I control the digitone CCs with a launch control XL surface. I have kick and rumble in a group in ableton, and when I toggle/untoggle the group, for some reason the Osc B Env End goes to zero. It looks like ableton is sending that CC to the DN, but why? I tried go in MIDI map mode, but toggle/untoggle group is obviously not mappable as it’s not a MIDI signal.

Actually, I have also other groups other than kick/rumble, and it does the same - groups that include DN input and that don’t. It does this to whichever track is currently selected on the DN. Anyone able to help me solve this mystery?