When i restarted, USB Audio did not work, because there were only the options "Mono input" and "Multichannel input". The problem is that both of those options do not work, Only "Digital Stereo IEC958 Output + Multichannel input" works, but the option for "Digital Stereo IEC958 Output + Multichannel input" doesn't appear.
EDIT: I fixed this by restarting.
