Designer Failed to Save

Sometimes my connection to my gateway goes wonky and the designer tells me the connection is restored every 10 seconds. I was working on a screen for a couple hours this afternoon and its about quitting time. I hit the X, hit save, and it took a while to exit. I was suspicious, and now I open up my project and all my edits are gone. It didn’t save.

Can I get what I was working on back?