Starting Fresh Every Time I Launch Scrivener 3

UPDATE: SOLVED

I just got a new MacBook Pro. Yay!

I set up Scrivener 3 like I had it before. When I first launched the app it asked for a backup location. Normal. Then I load my preference and theme. Open my WIP, do some work. Sync to Dropbox. All is well. Close project. Quit app.

Open app again. I have to start all over and choose a backup location. Then load my preferences and theme. Rinse and repeat. Groundhog day.

Any suggestions?

Make sure the application is correctly installed in your Applications folder, as opposed to running from the installer DMG or something like that.

Katherine