XPS 15 9500 Maxx Audio Issues

Hey all,

Got two questions about the Waves Maxx Audio app. I was running into an issue where connecting a device to my audio jack on my XPS 15 9500 wasn't automatically switching the input over, and I realized I must've disabled this Maxx Audio app on startup. Once I re-enabled it, and restarted my computer, it started switching over again. However, I'm running into a new issue.

1. When I plug an audio device into the headphone port on my laptop, a small black window opens in the background for a second before going away while it switches over. Is there any way to disable this?
2. When I try to open the Maxx Audio Pro app (or Maxx Audio Pro by Waves, I've got both), I get an error message that says my current audio codec is not supported. How can I fix this?

Thanks.