Screeching audio

Okay, when we shot, there was some sort of air conditioner that I didn't notice in the background. I cleaned it up a bit in Soundtrack pro, but then I decided just to go with the original audio (I was editing destructively), so I didn't save my ST project. Now, the footage in FCP screeches. But when I go to the original footage in the Capture Scratch folder, no screech. I've even tried re-connecting the media, re-importing into FCP, nothing is working.

Any suggestions?

Bueller? Anybody?

Try dumping your audio render files and re rendering the project.