I'm having this problem as well. I have 2 lighting node pros in my system, one that controls 3 ML 120 rgb fans and one light strip. The other controls two lights strips (each on a different channel) that I have on the back of my EK water blocks, these are the ones giving me problems.
When I first started up the system and installed icue everything was working fine. After a few hours the light strips on the graphics cards were frozen, except for the first two leds(which still seem to work properly). I rebooted and everything started working again, but the two light strips froze again after a while of playing games.
Now when I start up my system, the strip on the bottom card is dark except for the first two lights. The strip on the top card works for a few minutes, then all but the first two leds freeze. I can't tell if it's a hardware problem or software problem.
