Disappearing file in SketchUp Web

I’m using SketchUp Web and a file just disappeared completely. I’m 100% sure I’m logged in to the correct account.

I know because the file that vanished was called “Dresser 3” and, after it disappeared, I duplicated my “Dresser 2” file and SketchUp automatically named it “Dresser 4”. That, to me, means it knows there was a “Dresser 3” file. Am I nuts?

Are these dresser “models” individual SketchUp files or components within a single model file?

Are you looking for the file in the set of recent models in the Home page? Do you see the file if you choose Trimble Connect?