My orchestral score has an organ part. I have succesfully created alll the wind, brass and strings and am now moving on to the keyboards which inlcude piano, organ (manuals + Pedals). I have set everything up for the organ as I have for all the other instruments. I have checked and double checked that the correct stave is sending midi to the correct VI everything looks as it does for the other 60 odd isntruments. I've loaded the Bosendorfer imperial distant preset for the piano, the organ manuals preset and the organ pedals preset for the organ. The piano plays back fine and the organ pedals play back fine but the organ manual are silent and I'm stuck.
I have played the same preset in a VI standalone and that works. I have tried putting a new organ stave and copying the music across and writing new music into it. All to no avail, still silent. I have diverted the organ manuals stave to the piano VI and that works.
I can see midi being generated from Sibelius I can see midi generated in the VI and I can see the keys on the player being depressed I just can't hear anything.