I'm not familiar with the iConnectMIDI, but I am guessing that you are trying to control the H9 with both MIDI and Bluetooth at the same time.
When we designed the product we expected people to use either BT or MIDI to control it. As a result it does not handle simultaneous operation very well.
Clearly, we were mistaken, and aim to improve this interoperability in the future. In the meantime, best stick to either BT or MIDI at any given time.
A further issue is that the unit can also not operate on both MIDI and USB at the same time. If the USB is connected, the MIDI is shut off. This is due to necessary hardware restrictions. Sorry.
Important to remember that this is a guitar pedal, not a massive computer.
