Hello Harken303,
I'd suggest:
With Hauptwerk not running, if you're using Windows, try running MIDI-OX ( http://www.midiox.com/ ), or if using a Mac try Snoize MIDI Monitor ( https://www.snoize.com/midimonitor/ ) then making sure that the relevant MIDI IN port(s) are enabled in that application, then pressing your Allen's General Cancel piston.
In its log window MIDI-OX/MidiMonitor should then show you the messages that the computer received from the Allen. You could then copy the full text of the logged incoming MIDI messages and paste it here so that we could see it.