Why arcing yellow lines on my podcast track? How do I make them go away?

I recently completed a 20 minute podcast, and noticed as I scrolled back to the beginning that Auditions seem to be adding these cross-crossing, arcing yellow lines over segments of the track.   Now it sounds like the narration is duplicated,  but not perfectly, over these sections. What am I doing wrong and how do I get rid of these tracks? I rerecorded this podcast three times now hoping that I don't repeat whatever is causing that, and it's getting very frustrating. I can't find good support for this software online, and when I post things here, very few people actually respond. There's got to be a better way to learn how to use this program. Please help me. I would sure appreciate it.