Storyline. The project file could not be saved. Cannot access a disposed object

Hello, 

I'm posting this in case someone experiences this problem in the future. I encountered this issue and tried all the above suggestions with no success. I had to submit a support ticket, as Kelly Auner suggested above. However while waiting on a response. I uploaded each scene to the 'Team Slides' library, closed the file, open a new one on my hard drive and downloaded the scenes from the Team Slides library.  Success!!!  Hopefully this helps someone while waiting on a response to your support ticket.