I’ve got Plateau hooked into the AUX on the mixer, and when I use Fade on the outputs it doesn’t reduce the volume.
The two Drone outputs here are in GRP2 which is set to Fade. As you can see from the AUX and Master VU meters, with Fade down there is still a full strength signal coming through. On the second pic I have Muted the AUX feed from Plateau and the output is gone.