I had similar problems with my ux2. Sound cut off in every application, except asio applications and pod farm. But I managed to fix it. I simly connected onboard(or pci-e discrete) soundcard headphones output (in my case it can work as line output) to "monitor in" input and selected this soundcard as playback device. I still use ux2 as default recording device. And I still can select what device to use in audio/video players or DAW. So basically OS and soundcard with STABLE drivers convert all audio (games, skype, discord, etc) to "prepared" analog signal and send it to "monitor in" input. It works perfectly, or almost perfectly :).
