I'm not sure if I'm unlucky or what, I've hooked up 80 pixels so for from Ray - 48 from one strip (ws2811 12v) and 32 from a second and I have 1 pixel from each string which has already failed colours. The first one has lost Green and Blue, the second has lost blue at this stage. The worst thing is, they're in the middle of strings, so will have to cut them out. Could there be anything else? I've only used the test pattern on the p2.