yes thanks, this worked! I've found the same info but it always said to "hold the key", I have the module version so I unplugged everything... turned out it works with the midi controller plugged in, and following the same procedure: play the external keyboard until a note sounds "off", that's the faulty voice, keep the key pressed on the controller and press "glide" + "hold".
Then I ran "Preset" + 3 to clear the calibration, then "Preset" + 0 to run the calibration, it ignores the voice 6 which was blocking the process before.
Thanks a lot, I look forward to hearing from Sequential to get this fixed, but at least I can record now
