any software instrument, all the same, if you load any software instrument lets say a Synth or Piano, it only produce sound by penceling the note, midi input from midi keyboard doesn't , They are on ALL channel, but changing them to channel 1 doesn't make any difference . There should be some setting only for this project as new project works fine. Im trying to see what would cause a midi input go through to a channel loaded with software instument but no sound produced unless you draw the notes.