If your´re getting the Missing object: “sphere_HD.obj” error:
I´ll paste one users approach to this here:
Ok guys! I found the fix for those missing the plane.obj!!! Here is what you do…. Go into the project file then into the element 3d plugin Create a plane (in v2) Copy the material from the old plane object and copy it to the newly created plane. Then scale the new plane object (make it larger). DON’T MOVE IT. Just scale it. And that should fix it!! Worked for me!
If you try this approach with the Sphere_HD.obj it should work I think.