Collecting cubes in Rollaball works in edit/play mode, but not when built to Windows

I just completed the Unity Roll-a-ball tutorial. Everything works properly in the Unity game engine software, but as soon as I build to windows platform, the player ball does not collect the cubes.

Any Ideas?

Was fixed after I saved the scene and restarted unity and built again.

Following this thread: Roll a Ball Build failed - Questions & Answers - Unity Discussions