USB3 (New Macbook) with Traktor S4

So my S4 wasn't working properly, I went ahead and did this. Now the S4 works fine, but my KA6 doesn't work anymore. Prior to me doing this, I could use my KA6 completely fine, and not my S4.

Now the KA6 doesn't show up at all under my Sound devices through my System Preferences. Any ideas on what to do to fix it?

Thanks!

I'm wanting to get a MacBook Pro MD101B/A 13" and was wondering weather there is still issues with the USB 3.0 slots using the traktor s4 .?