I have the Mbase01 and it does not work well when midi clock is being transmitted… Turn midi clock off and see if this fixes your issue… To eliminate the issue completely which is a drag cos I would like to send program changes to the Mbase is to trigger via GND-IMP machine…
The GND-IMP will trigger your notes flawlessly but you will have to assign the GNP-IMP out to one of the MD audio outs in the Global Menu… Don’t worry this is easy to do… Down side like I said is that you lose midi control of the Mbase… I bet your Mbase does not like midi clock if your MD is tx’g it…