Pioneer DJM 750 rec out problems

Hi, I recently got a DJM 750 and whilst im happy with it, it has suddenly developed a problem with the rec out as I was recording a mix and went back to listen to it, it was all distorted and inaudible now I know I was barely in the orange as I like to have some headroom to master the mixes a bit.

I have tried everything from turning the levels down to the green and still no joy I tried using different pc to record to (both using audacity) tried different sound cards to record to but still it persists.

I am using two kontrol x1's and a Traktor Audio 10 interface all on a 2011 macbook pro