No, it's empty. I've tried with the Poser primitive bowl and I also made one. Same results. I also tried splitting a bowl into 4 sections, to see if it would work like connected ramps, but got the same result as well.

I made a 3 part spiral (bottom, and 2 sides) to see if ball would follw that, same result. I tried that scenerio with the spiral imported in 1 piece, and all pieces imported separately, and all turned out the same results.

                                                                                                                    

Poser 10

Octane Render

Wings 3D