Over the last 2 days I put up all my house outline. Consists of 2 x P12R's. Strip is WS2811 30p/m (10IC p/m). Tested them tonight. Here are my problem areas. Will list the problems as it looks like the above red writing cant be read. 1. Top left - multi-colored line. As soon as the controller plug is plugged in (without LOR on) the strip goes multicolors blinking. I dont think this one is data related as its a short'ish distance from controller. When LOR is working and colors/sequence tested it works fine. Its own universe/slot. Just had a thought, pretty sure this one is speed issue as I only have 1500 for speed whereas others are 2000. 2. Bottom left - Same as the above but the colors only appear infrequently after something has been played on it, it stops and starts. Again, only a shortish distance from controller. Its own universe/slot. This could also be speed as it too is set to 1500 3. Middle little blue line - end of 2nd line. This run consists of firstly a 6m (60px) going up to the middle of the house upper peak, then 5.5m(55px) down to the end, the last section turns blue. The next part is on the lower roof. When controller is plugged in (without LOR running) it stays solid white. You can see it kinda trying to go colors during sequence but doesnt. I assume its because of that last blue section up the top? All one universe - 132px 4. This is the 3rd house peak run. Consists of 3m + 3.1m (upper peaks) + 2.4m (lower peak). When controller plugged in majority of the first 3m section goes white, the other 2 lengths dont go at all. When sequence/color played you can see that first part trying to change color but the rest is continually not going at all. Long run to controller, data issue? All one universe - 91px 5. Last problem, randomly after color/sequence played this goes red with 1 section at top diff colors. Long run back to controller tho so data issue? I think the issues are mostly data related, just not sure on how to fix them as I havent worked with null pixels yet so dont know how to 1. install them and 2. how to configure them in P12R. Any help much appreciated as we will have to get up tomorrow while hubby still here and not at work. Some of these things could also be speed issue, I havent checked yet.