Overlapping Audio Files on a Slide

I recently recorded audio files (from mic) in Storyline for each slide.  Everything worked fine.  Later I came back in to make a few audio edits to a couple of the slides.  When I went back to Sound --> Record  it said there was no audio recorded.  So, I recorded the new audio for the slide and published.  When I view the output I now hear both audio files being played when I go to those slides where I had updates to the audio.  Anyone know how I can resolve this?  Each time I go back to those slides it shows no audio recorded.

7 Replies