Hi,
think I got the same Problem after changing from Windows Laptop to a MacBook. I can only run Traktor when I connect the Windows Laptop let every record play to calibrate and then connect my MacBook. Than it works fine. Traktor can´t help me out and Pioneer wants me to send them the Mixer. I called the german support hotline. They want to have 50 € and if they have to repair something they want eve´n more Money this really sucks. I just saw your comment is from 2014. Did you found any Solutions?