Hmmm, this is odd. Either @Benjamin or @Steve can have a look on the server, and see what is off with your soundsets.
When you create a soundset it is normal that the oneshots on the right have a clarinet symbol. Art is not copied into a new soundset.
With your new soundset you build (with Encounters and stuff) and downloaded into the player, what happens if you start a mood? You say there is no sound, but what about icons? Do the elements that should be playing have a lit up play icon and the little ring moving around it?
Have you worked through the pro tips section and watched the instruction videos on how you proceed to create a soundset of your own? There are a lot of explanations given there, that might be useful.