LookAt doesnt work with cardboard SDK or any camera movement

I have the cardboard SDK on my unity and i have 3 scripts on my main camera, the stereo controller, a script that makes you orbit an object and the simple

 void Update () {
     transform.LookAt(target);
 }

but the camera lookat does not work. the camera orbits the object but doesnt look at it. The camera is at a fixed angle and doesnt lock on to the object