XDCam 422 Stereo output?

Hi,

Im having a real issue, since I need to deliver shows to the network next week and Premiere isnt working!

I am trying to export MXF OP1a, XDCAM HD 50 PAL 50i with a stereo audio mix.

Ive been using these settings for the last 5 years with no issues and all of a sudden I cant get a stereo mix, only mono.

I have a left audio mix in track 1 and right in track 2. Track 1 panned left and track 2 right. It plays back in stereo in the timeline.

I can export most other codecs in stereo, for example if I select avc intra 100 it works perfectly.

Only problem is I need XDCAM HD 50 PAL 50i for the network.

I have tried a few version of Premiere and and media encoder and its the same result.

Any help would be very much appreciated.

Cheers,

Ryan