File not saving

I have received a notification for an update on Storyline 360 this morning (8 December). I ran the update. When I opened a project I have been working on on Thursday (6 December), none of the work I have done I received a message that "the project has been recovered". The file opened, but none of the work I have done is in the file. I have a habit of saving my project every 15 minutes or so.
I started redoing the work I have done, but it is not saving at all.

I actually published the file on Review 360 for the client to show my progress, and all the new work I've done on Thursday is in there. 

Please help! It's an entire day's work and I have a deadline!