Sorry .. but I disagree ..
If I add the RGB Fixture .. it only send out 3 DMX Channels (this is confirmed by your own DMX monitor) ..
I need 4 ..
I have
-Control
-Red
-Green
-Blue
Your fixture is not a generic RGB device. For that reason, it needs a personality to work correct. Of course another personality with 1 channel (dimmer for example) + RGB will work. But I"ll be happy to create one for your specific manufacturer/fixture if you explain what the control channel does (is it just dimmer, or is there also strobe on the channel?).
My post was about the colour mix that works how it should: RGB get's mixed HTP even if it's spreaded over a couple of playbacks.