I'm not a Logic user, but I had this same problem with the Novation AudioHub too. There is the little button next to the headphone jack where you can select between 1-2 / 2-3. Mine was not popping out all the way when I clicked on it. In order to get mine to work again, I had to push it down kind of hard, then grab it between my fingers and pull it out all the way. Hopefully this helps someone : |