First, check if the cover caps are properly secured. When attaching them, you should hear a click indicating that they are hooked together. If the cover caps are hooked together but come loose when you rotate the arm of the Lightswing®, it is likely that the screws used to attach the Lightswing® are not deep enough in the intended recess. Try screwing the screws all the way into the recess and use screws with a flat head that fit well into the recess.