Force Field Shader Bug

So I have my material set up exactly how I want it, but apparently the material does not work when scaled up.
This is the section of the material that I think is causing the issue, but I can’t be certain. Can anyone figure out how I can scale the sphere up without the shader disappearing?

https://forums.unrealengine.com/attachment.php?attachmentid=19253&stc=1&d=1418172559