I tested this for you using the previous version of MM with the beta Midi controls enabled and it worked as expected. So Qlab is sending the correct MIDI.
Bearing in mind you are trying to interface the program's using unfinished features in MM you have 2 options..
Use the previous version and enable the Midi features and google one of the hundreds of pages that will show you how to set up IAC busses, or use the current version with the direct MIDI routing and implement a workaround for the cc anomaly e.g only use even number presets..
Mic