DDJ-SX Led Status Feedback

Hi there,

on my DDJ-SX the LED-Feedback on both audio-cue and autoloop buttons does not correspond to the actual status in the software. In the first hour of my set everything was working fine, but then after a while when i hit the audio-cue buttons they don't light up or stay on. After a few fast repeated punches on the buttons they show the correct status, but when i press the audio-cue or autoloop button again its showing the same faulty behavior.

I have a 2011 MacBookPro with OS X 10.8.2 freshly installed.

Is there any way to fix this Bug or do i have to return my unit?