I still have the same Issue. I analyzed the Midi Messages because I made it work with the morningstar midi usb.
It looks the same check out this log:
18:47:29.659 From HX Effects Program 2 1 (doesn't work)
18:33:30.313 From Morningstar MC6 Pro Port 1 Program 2 1 (works)
With the morningstar it works fine but with the HX effect it doesn't
if you have any idea what it could be let me know.