How do I restore a project file in a Production?

I made the mistake of opening an older version of a project file while my Production was open, and Premiere got into a weird state where it went to the opening screen when you launch the app, and I couldn't move past it so I had to force quite. When I relaunched Premiere, the Production seemed to revert to a version from sometime yesterday. This despite the fact that I obsessively save every five minutes, and I had last closed and fully saved the Production around midnight yesterday. I checked autosave and of the two bins that contained the cuts I've been working on, one I was able to find a copy from fifteen minutes earlier, but the other bin hadn't autosaved since yesterday at 8:30pm. Is there another way to recover this Project file? I am of course on a tight deadline and dread losing almost a day's worth of work. Thanks!