Ok. The only thing I can think to do is reconnect to MDM, Get All and turn TriggeredInCC off, send to MegaDrum. Then, switch to Snare channel 4/5 in Pad settings window, reset the gain to 1, threshold to 127 and send. If the triggering is still occuring, do a firmware update; STM32d
viewtopic.php?f=3&t=1075
If you're still having the problem, we'll need the boss to chime in, hopefully soon for your sake. I'm not sure what else to say unfortunately.