I have not been able to get Traktor 4 Pro or 3 to recognize my X1 MK3. I installed the latest Native Access. Updated Windows OS and Traktor 4 pro software. When I go to Preferences > Audio Set Up > Audio Device, the X1 is not in the audio device choices. The X1 is powered on and connected via USB and the power supply is also plugged in. Oddly, the length of the track shows up in the displays near the shift button, but nothing I do on the X1 has a corresponding response in Traktor. Also, the Traktor software play button is not responding when I left click it.