your wanting your player to activate buttons/switches when he stands next to them, but your using collisions and get no returned value if the player is not moving?
Create a larger sphere around your player and position it at the players position(do not parent it) all the time, that way if your player is standing next to the switch the sphere will get moved back but will try to reposition at the players position thus always colliding even when standing still.
Create a larger sphere around your player and position it at the players position(do not parent it) all the time, that way if your player is standing next to the switch the sphere will get moved back but will try to reposition at the players position thus always colliding even when standing still.