"RayTraceSphereFallOff" Problem

I am having a problem with the RayTraceSphereFallOff node where it is creating another sphere/circle behind it. How can I get rid of this unwanted sphere? Evidence: https://i.gyazo.com/4010ff3c31551ad8b0a5752201784bd2.mp4 Blueprint Code: https://i.gyazo.com/cc6e698a83952bdba53aa429e8b3e603.png