Issue with DJM-T1 X fader

I'm having an issue with my brand new DJM-T1 cross fader where if I gently move it fully to the right or left, the music does not FULLY cut out. However, if I more aggressively click it over, it will kill all the sound from the opposite deck. This is my 2nd mixer. The first one was experiencing the same problem with original firmware. The 2nd one, upon opening, and installing the 2.0 firmware update, is immediately exhibiting the same problem. I'm using a Macbook Pro i5 and Traktor scratch pro. The tsi file has also been updated to reflect the 2.0 firmware update. Is this normal? What am I missing?