Getting max/pd machinedrum randomizer to work

I have downloaded both the max and pd patches that randomize settings in machinedrum. Midi data is send out of my computer to my digital audio box, but then machinedrum doesn’t register it or change data. I’ve done the same with monomachine and it works. Is there something obvious in global settings I might need to adjust? I’ve tried messing with channels, local control off and on…

Thanks!