Multiple Tracking cameras will not track different targets!

So I have two objects in a scene, both moving. I create a camera child to each and attach the Camera Look At script from standard assets. Each camera has the opposite object as the Look At Target. When I hit run the Look At Target of both objects resets to the same target. So in one camera window the object is looking at the other but in the second window the object is looking at itself.

What am I missing?