Taped a show at the absolute last minute this weekend and grabbed the first miniplug>minplug cable I could find to run between my Tinybox and DR2D. I was getting levels on both channels for the whole show but listening at home it is apparent that starting a few minutes in, and then for the next hour or so, the sound switches to what is essentially dual mono, but out of phase - i.e. there is signal in both left and right, but when added together they cancel each other out perfectly. There's also some noise (buzz) and the balance of frequencies is a bit off, with kind of a tinny/AM radio sound (even after getting things back in phase). Then all of a sudden the sound pops back into noise-free, rich stereo for the last half hour.
The recorder got moved around a few times so I'm hoping this is just a case of the miniplug getting unseated and then popped back in place - but could that cause problems such as I describe? Or could this be an issue with the recorder or preamp?
Of course I cannot reproduce this at home...