How to "Remove" Parts from a highlight instance?

This is difficult to explain, but… I have an effect in my game, Part of this effect gives the player a faint yellow fill from a highlight instance. The thing is… There’s clock hands with that effect, and the part that the clock hand decal is on becomes visible with the fill. How do i fix this?
If you look closely, you can see the fill.
I want this highlight to go to specifically the player. Not the other parts.