I try to get an Surface Pro 4 working with the Surface Dock and two 4K monitors. I try to use a CSV-5400 that is connected to the Surface Dock. The first display (Acer CB280HK – UM.PB0EE.001) is working fine. The second one, a Samsung (U28E590D – LU28E590DS) flickers and turns off. I know that it isn´t easy to get two 4k monitors working with the Surface dock, but I bought the CSV-5400 because I thought that it would make it easy to connect the two 4K displays. Any ideas, where is my mistake?