Having trouble with audio when playing Storyline 3 via Skype

I have created a tool using Storyline that enables our marketing reps to conduct webinars. There are several videos packaged in the Storyline 3 project that they play as they also speak to parts of the content. Unfortunately, the audio in the  videos doesn't play over Skype. I've had some resort to playing the videos on external speakers and then hoping the computer will pick it up enough for the participants to hear, but that doesn't work so well :).  I know you can embed individual video into PowerPoint and that works, but as part of Storyline 3 is there a way to make this work?  Thanks!