Hi, I'm having the same issue.
My PSU is the RM750x, and it seems that SATA power is 6-pin on here, so why isn't it getting enough power to make my block RGB?
I see that it is detected and is through a cycle on the software, but it still is not on. In addition, one of the fans stopped its RGB altogether along with my two others in the lighting node pro.
On my build, I have a corsair h100i pro rgb, and the RGB on the water cooler seems to have not turned on. Should I be worried about the aio being broken?