I have a color problem with NeoPixel rings (not really a FastLED problem…):
My LED goggles project that was stored in a drawer for a year now has a problem displaying the color red on some of the LEDs (WS2812b) (see pictures and here http://youtu.be/LYykXOOvjww )
I noticed that the solder joints are dirty with playa dust, but since LEDs further down the (data) line seem to be working perfectly I suspect it is not a data/power issue.
Did anyone experience the same - or similar - problem with your LED projects? How did you fix it? Does re-soldering all the joints help or do I have to replace the non-working LEDs?