Does the Nova have options to send MIDI for multiple MIDI units (such as MIDI 1, MIDI 2, etc...)? I think that's your problem. If not that unit itself, probably the foot controller you are now using. For example, a Midimate foot controller will send MIDI to several looped devices. On the Midimate itself I need to tell it what to tell each unit to do. If my Xpression is first it is 1, the RM4 is next and is MIDI 2 and the RT 2/50 is thrird and MIDI 3. I need to go into each patch I save on the Midimate and tell it what to do. It isn't like the RM4 to the RT 2/50 setup.