Just bought a second Mackie MCU Pro Externder.  This time I had to buy a new on because I couldn't find any worthy used units.   This is a 4.0.2 firmware unit and everything else is 3.0 version.  I'm not getting a complete scribble strip display on the new unit.  I'm getting the track labels but instead of "Pan" being displayed, I get "......."  I'm wondering if this is because I'm using different firmware or it's a SONAR X1 bug.  FWIW, SONAR 8.5.3 works properly.