" Please, double-check Preferences > MIDI > MIDI Filter. Make sure, nothing has been enabled (but SysEx) here. If you enable any check-box here, it means, the data is filtered out"
— DONE , only SysEx is enabled … See screen shot
“Also double-check Studio > Studio Setup. Go thru all devices in the Remote Device folder here, please. Make sure, all Inputs are set to Not Connected, please”
… DONE , they say Not Connected (see screen shot)
“When you are playing your KORG keyboard, can you see the movement of the HALion Sonic SE virtual keyboard, please?”
… NO … and that’s the problem … MIDI signals come up to Fast Track pro but don’t connect with Cubase Instrument Track
“Btw, we are still talking about the scenario to use your KORG as a MIDI controller only. No sound from the KORG synth, right?”
… YES , Sound I am expecting to hear is from Halion Sonic (not Korg sound), Korg Keyboard should just be a controller
Also, Triton Extreme USB is only for file transfers , no MIDI data (per documentation). So basically with my current hardware, M-Audio Fast Track Pro has to be used, If I can make Cubase to see MIDI messages coming from it