Edit and timeline missing from Resolve, DRP, and all backups

I updated Resolve to the Studio 17 release and started editing a new project yesterday. After finishing work for the day, I exported a DRP as a failsafe. I logged on today to find that my timeline from yesterday is gone. I checked my DRP and each of my project backups and they have the same issue. All of the multicams I created are still there in their bins, but the only timeline I have now is just 1 timeline with a single multicam clip in it. Does anyone have an idea what happened to the rest of my project?