One common item missed is setting the OUTPUT to THRU. XMT blocks incoming PC messages. If I’m not mistaken, there’s also a System setting to RCV program changes.
The MIDI output setting doesn’t play a role in interpreting the information the H9 is receiving. XMT does not block incoming messages. It only determines how the H9 will react when it does receive a message – will it retransmit or not.
RCV.MAP could be a source of confusion if somehow all program changes are set the same for some reason. Might be worth checking out.
