Color Scroller marking in dark

Hi all need a little help with some simple Forerunner scrollers. Since they are one channel I used the "generic" scroller profile on my RoadHog4. Profile works great but the scrollers are not moving to their new color in the blackouts. Movers and other intelligent fixtures are all marking properly- but not the scrollers... Do I need to do something to the scroller profile I chose? Should I have used a different profile for a single channel fixture - thanks!!!