First I feel like I should apologize for this question but I'm new to this and possible in over my head! But for some reason I have one pixel at the end of a string that will not show the color blue when I test the lights in xlights. Using the RGB test feature the whole string lights up red and green, then everything but the last pixel lights up blue. It's happening with my rgb flood lights as well, I have 3 chained together and the last one will not show blue. I used the auto layout and visualizer to set up my AlphaPix 4 controller. When I test the lights on the controller themselves they work just fine so I'm nor sure what I'm missing...