Seems like Generic Remote has not been updated since a long time.
When working on a control room remote, i’ve seen two problems :
missing items (for example click volume for main, for cues…)
some button commands do not send back the information to the midi controller. This mean that it is not possible to update the LEDs on the Midi controller. Strangely, midi output is working when the buttons are pressed inside Nuendo.
For example the Talkback button do not send back its status to the midi controller.
Even more strangely, some buttons are working correctly, sending back the on/off state to the controller, for example Speaker selection do it.
In the mixer, the Listen button of the selected track is not available for Generic Remote.