Whole set up with APA102 stripes and Hyperion NG Alpha 9 working perfectly with internal and external grabber in regadrs of changing colors. But as I want it to be perfect, I have a issue which I couldn´t find in the forum. When a dark scence comes up or the color is not in full brigthness (I would guess below 20-30% brightness), the led starts flickering but not hard flickering it like on off and it is happening with same the color. So it is not a black problem. This applys only to the external grabber. Which value need to be changed to stop that? GND is connected to PI and Stripe. This kind of flickering wasn´t visible with the old Hyperion. So guessing it is a Software option I am asking, before I start to buy a new powersupply and ferrite filter.