I realize this post is more than a year old, but has anyone found an issue to this? The problem we are having (and the OP is having) seems to be specifically related to the Log and Transfer process of FCP. The footage has no audio issues in camera, the L&T Preview or in the P2 Content Manager Playback window, but as soon as FCP processes the file the audio drifts and is truncated.
Any thoughts are greatly appreciated.
Thanks,
Jim