09-05-2021, 12:22 PM
Is you Macbook connected via PC port? I believe those ports should pass SYSEX (currently I'm pretty sure MIDI host ports and outputs 7-12 do not pass sysex). Can you try using the internal midi monitor to take a look and see if it's passing data when you send it? It's on page four of the tools, but you'll have to press select to un-pause it once you get to the correct page.
Jesse
Jesse