Hi again,
I was mistaken with my test before. My MIDI monitor was showing information from the DIN and USB outputs of the H90. The DIN outputs alone do not have any SySex information when using H90 Control to save Programs, it’s just PC messages. I’m not sure what may be causing your issues when only saving using H90 Control since it is always just sending PC messages.
We may be able to troubleshoot this further if you’d like. It would be helpful if you had some other MIDI devices and a way to monitor MIDI messages.
