Unity Code working in DK1 no longer works for DK2

Hi there,

So this is a really simple camera switching script I had to flip between a fixed camera and a character controller camera. No problems with the DK1, and when in Unity, no problems for the DK2. However whenever I make a build, the first switch is fine, but when I try to toggle back, it freezes. Every time.

Anyone have any thoughts on why this is happening, or if there's a good alternative code for this action? Thank you!

Javascript:

#pragma strict

var playerCam:GameObject;
var mainCam:GameObject;


function Awake() {
	playerCam.active = false;
	mainCam.active = true;
}

function Update () {
if (Input.GetKeyDown(KeyCode.C))
	{
		playerCam.active = !playerCam.active;
		mainCam.active = !mainCam.active;
	}

}