will need a bit more context on what RC is, is it your right controller?
On the second note, the grabsphere traces the VRtraceChannel to grip things, with the world static and world dynamic objects trigger hand animation. ignoring those collision types in your box collision will stop it, or if its a grippable object with the interface you could set it to deny gripping if you dont need it to be grabbed. Alternatively you could set a custom channel for specific objects you want to check for.