Here's the scenario;
Q43.5 Main state
Q44 Start to fade down, time 30, flags -B
Q45 fade further, time 20 30, flags Mb P
Q46 snap back up
Q45 is always called within a few seconds of Q44. I have noticed when Q 44 completes the Duration time for Q45 stops on a green 0.0. After the down fade completes it counts down again from 20. I presume this is the preheat function in action, but why doesn't the Duration column show how long the fade has left before the Preheat?
As an experiment I changed the down fade time on Q45 to 50 seconds and sure enough as soon as Q44 completed the duration time on Q45 went to a green 0.0 for 30 seconds even though the channels were fading as normal on the channel display.