I have not had any issues with the update, and I do have audio working perfectly.
This is a stupid suggestion, but did you check your audio for the Kona in system preferences? Thats always the last place I look. Also the Kona control panel now has a scroll on its tabs, I am not sure if you meant that you couldn’t find the audio tab or not, but that might be why it is hiding. Just look for the <> on the sides.
Jared
Idea Spring Editing, Inc.
Denver Final Cut Pro UG