I've built a WordClock with a NodeMcu and some ws2812b LEDs some time ago and it worked really well for like half a year but now the LEDs are starting to flicker when the WordClock runs longer than some days. Video of the problem
I've got a 25w meanwell power supply, has this something to do with undervoltage? The strip is connected on both side to the PSU and I've measured stable 5V on the strip back when I installed them. Any recommendations?