I have managed to set the LED lights in different colours now, so it looked as if it would work. But I do not get any LED light now, nor my standard notification sound ! But I am quite sure this has nothing to do with the LED settings, I have had problems before with no notification sound at least. The LED did not always work either if I remember right.
The LEDs have started working again, the notification sound still isn't, I have tried changing the sound as well.
They now have stopped working again. Weird.