I have an unusual situation. I have not experienced it before.
I have an instrument loaded. I have it sending to Mixer Inputs and then Mixer Outputs 5 and 6.
When I play the sound using either midi keyboard or the on screen keyboard, most of the keys send the sound to out Inputs/Outputs 5 and 6 as selected. But some of the keys send the sound out different a different pair of outputs, 7 and 8. (?)
I have tried the instrument in another Giga system and get the same result.
Maybe there is a parameter of the instrument I have never seen before that allows different keys to send to different outputs.