I use the APA102 LEDs together with RPI3. I collected everything exactly according to the guide on this page https://hyperion-project.org/threads/raspberry-pi-3-mediacenter-hyperion-ambilight-no-soldering.77/ Everything is working fine for me, no problems. But when I turn off the power of the LED tape, then periodically, once in 1-2 minutes, random LEDs on my LED tape start flashing randomly. It is important that Raspberry Pi at this time remains on, 24/7. What can I do with this? I do not want to turn off the power of Raspverry Pi, it's enough for me to turn off the power of the LED strip.