*Any audio effects applied to that track? That's what it sounds like it may be. Like an echo.

*Feedback loop going on from soundcard output to input creating a re-recording of the track at render? The echo-like timing is certainly within the amount of latency. Check your soundcard's recording settings, for instance, having it set to a "What U Hear" or "Stereo Mix" Setting could indeed be routing the output back to input internally and creating a feedback loop, essentially recording it twice or more, each time at lower amplitude.


--Mac