[Zubersoft]

Something's not quite right... I'm looking through the default.xml file in the directories you sent, and I'm not able to find default_midi_input_ids, or default_midi_output_ids. There should be an entry that tracks what devices have been selected under Settings->MIDI Settings->Configure MIDI Connections. It looks to me like you have not made any selections and are just relying on MobileSheets to automatically connect to the first device it sees, but that could be problematic, as it may not be connecting to the ports you actually want it to connect to. Can you please verify whether or not you've been selecting the input/output ports to connect to?

On a side note, I was wrong about the midi_settings.xml file, as that's only on Android. I never changed the Windows version to match how Android is doing it.

Thanks,
Mike