Storyline project is corrupt
I tried opening a storyline project this morning and got this error message: "This project is invalid or corrupt and cannot be opened. It may have been created in an earlier version of Storyline."
Last Tuesday, I updated my current version of Storyline. Then I imported a project I created in PPT and published in Articulate Studio. I was making changes Wednesday - Friday of last week with no problems and then this morning I got the corrupt error. It was working fine on Friday.
I was saving everything locally to my C drive to avoid these issues. Any ideas of how I can recover it or ways to avoid this in the future? I had problems like this with the old version of Storyline which is why I updated it before I started working on this file.