I just talked to one of my colleagues about your problem. I was thinking that the DMC was using the preset up and preset down pedal functions to change presets, but my colleague thinks that the DMC is probably keeping track of what preset it's on and sending out a program change for the current program + 1 if you press up or the current program – 1 if you press down. This is just our guess as we don't have one, but if this is the case, there is a solution for your problem using the DMC. You can save presets to your H9 in bypass. Make sure you have the latest version of H9 Control if you're using the app, because this is a new feature. Then, go to the Preset List screen with your H9 connected, put a couple of the presets on your H9 in bypass, and try loading those presets with the DMC and see if that works as you desired now.