Weird... was trying to edit a vocal track, and noticed that when I clicked on the "-" in the lower right hand corner to collapse the view a bit horizontally, a certain portion of the audio track just disappears.... I can still hear the vocal while replaying it, but the proper waveform isn't shown on the screen in that particular spot... it's a flat line instead of the waveform. The rest of the track seems to be ok. Then when I click on the "+" to expand the horizontal view, that portion reappears. What's happening here? The vocal track was bounced, one continuous track, no envelopes, no melodyne, no audiosnap, nothing....