OK, ready for weird.
When I turn on a output - no problems at all, and output ramps up to full on no worries.
When I ramp down an output from full on to off, at about 30% all other outputs come on at 30% and ramp down with it.
Turn on another output and ramp up as normal, ramp it back down and all outputs follow @ 30% again.
Anyone ever seen this behaviour before?
Cheers,
Rowan