I found out that the “Channel Select” buttons only select the channels in the “PROJECT window” but the fader and the knobs only works on the selected channel in the “MIXER window”.
In order to be able to select the track to edit I have to CHECK ON the “Sync Project and Mixer Selection” in the Preferences/Editing menu.
Is this a glitch in the CC121 soft?
I think the Channel Select buttons (CC121) must folow the one in the Mixer Window all the time, with and without the “Sync Project/Mixer” On. The other way, following the Project window you can select the channels but you can’t edit them (if you have the “Sync Proj/Mixer” Off).