Hello, here is my setup: Musicom EFX 6m via Midi to the H9. The Musicom sends a Midi CC with 1277 to the H9. Good. It actives the pedal. So now when i disable the button on my controller The controller send a 0 to the H9. H9 Turns off. Good. BUT when i am changing my preset ion my controller it always sends a 0 to the H9 because my controller says to the H9 "please stay of" but when this happens the h9 turns ON for a short moment. And because my H9 is in my fx loop, i can hear that. So my problem is: When the H9 receives a 0 Midi CC from my controller it turns on for a short moment.
What you are seeing is the H9 recalling the preset as ACTIVE and then being bypassed by the controller. This happens because the H9 presets were saved as active. If you want to recall the presets bypassed, you can save them as bypassed.