Audio Recording Not Saving

I recently upgraded from Articulate Studio 09 to 13. While recording audio, the "recording" window would not close after I clicked on the Save and Return to Presentation button. I manually closed out this window - and my audio was not saved. I tried recording the project again, but got the same result - even though I checked the audio editor during recording to make sure the audio was there. To get around this, I recorded the audio slide by slide - so I clicked on the slide in PowerPoint, clicked the Recod Narration button, recorded the audio, clicked the Save and Return to Presentation button, went to the next slide and followed the same process. This seemed to get the narration to save, but isn't very efficient.  I noticed that one of my settings was clicked to "Record Narration for one slide at a time" which I unclicked. Is this is what is causing the issue? I didn't have any issuing recording multiple slides in '09. Have anyone else had problems with their audio being saved in '13?

Thx