Thank yopu for your interest in this – This system is treaming live for a local radio station so it is difficult for me to have any control over the audio content that it carries but this seems to be happening most of the time now. I am starting to consider the possibility that this may be just a software issue because the actual level being delivered to the stream encoder connected to the (Breakaway Pipline) seems to be consistant between the two channels.
I have checke dthe Control Panel settings and the balance controls all are set to centre where they exist. I have also turned off all un-used inputs to reduce the possibility of some sort of cancellation via loop back audio. I might reboot this system during a quite period and see if that clears the problem up. I will post back with the results.