PCB is not showing in 3D viewer

3D Viewer not showing PCB and traces in Kicad V9.0 and Windows 11 Pro.

I saw Sie post “PCB not showing in 3D viewer” but it doesn’t give clear answer. Is there any solution?

PCB visibility requires a complete outline on the Edge Cuts layer. No gaps, no overlaps. The error message is saying this.

And why do you have what looks like a small board in the middle of your screenshot?

It worked thank you.

My board itself is small. Just a chip and some caps.