I've been working on a pretty complex edit for about 18 hours straight, and about 30 minutes ago I'm previewing a scene and suddenly the audio drops out. I look down at the timeline and the waveforms have disappeared from three audio clips. The clips are still there, but the audio is gone. This audio is all from one source file, and other clips using that audio work fine. I can't imagine what I did or what happened to cause this, but it's a problem I can't afford to let linger (needs to be done by tomorrow morning).
It might be a simple solution, but if anyone can help me out it would be greatly, GREATLY appreciated.