MDM crahing, need help

I have tried a thousand times to get MDM working. No success so far.
How do you get it to work?
I'm using the online version
First I start my MD, computer makes a sound and MD is connected. Then I start MDM.
(I can use my MD to trigger sounds in Superior Drummer 2.0, this works just fine.)
The first step is to set the midi in/out under main > option.
There is no information on how to pick the right option. So I just set it to MegaDrum MIDI USB, both input and output.
The result is a red bar that says: ''Midi Innit Error''.
When I use the ''Send ConfSysex'' on my MegaDrum it sends something to MDM.
The red bar changes to a green bar with 'SysEx OK''. And I see the current firmware version, but MCU is ''Unknown''.
When I change settings on the MD and use ''Send ConfSysex'' the settings in MDM update.
So I can change settings on MD and see the changes on my computer after sending the settings.
When I try to change settings from MDM to MD the program just crashes. And the settings are not changed on MD.
To make long story short:
I can send settings from MD to MDM.
I can not send settings from MDM to MD, this makes the program crash. And the settings are not changed on MD.
How do you get it to work?
I'm using the online version
First I start my MD, computer makes a sound and MD is connected. Then I start MDM.
(I can use my MD to trigger sounds in Superior Drummer 2.0, this works just fine.)
The first step is to set the midi in/out under main > option.
There is no information on how to pick the right option. So I just set it to MegaDrum MIDI USB, both input and output.
The result is a red bar that says: ''Midi Innit Error''.
When I use the ''Send ConfSysex'' on my MegaDrum it sends something to MDM.
The red bar changes to a green bar with 'SysEx OK''. And I see the current firmware version, but MCU is ''Unknown''.
When I change settings on the MD and use ''Send ConfSysex'' the settings in MDM update.
So I can change settings on MD and see the changes on my computer after sending the settings.
When I try to change settings from MDM to MD the program just crashes. And the settings are not changed on MD.
To make long story short:
I can send settings from MD to MDM.
I can not send settings from MDM to MD, this makes the program crash. And the settings are not changed on MD.