I'm stumped. I started with a capsule. Made it editable. Used the knife loop to cut off the top. Now I have the bottom of a capsule. I'm trying to show a bunch of small spheres falling into and filling up the capsule. I created the Cloner, placed it above the empty capsule. When they drop, they start falling away, not going into the capsule, as though the part I deleted is still there. I tried the same with a cube. Deleted the top, but when the spheres fall, they land on the "invisible" top of the cube, as though it were still there.
I'm totally confused.