I have the sustain Icon highlighted in the edit mode and the "1" Selected as the Sustain Mode. When I record, I have "64" midi messages sent to my DAW but it doesn't seem to be sustaining the notes in Omnisphere.
Well, I got it to work using my Akai LPK25. However, I haven't been able to get it to working using my old Juno-2 as a controller. It appears the Juno-2 is sending the messages, but it appears on Midi 8 instead on Midi 1. I think I should just break down and buy a real USB controller with all the knobs and sliders to handle multi-controls in real-time.