Weird rotation on AI movement

Questions & Answers
1

When the AI for my game moves towards the player, they will have a extreme rotation and jitter to their movement. Here is the code that I am working with.

function Mover(target : Vector3)
{
    // While moving we want to also Rotate

var diffVector: Vector3 = target - transform.position;
 
    var movement : Vector3;
 
    if(diffVector.magnitude > 1)
    {
     	movement = (diffVector.normalized * speed);//without this it will run toward something and slow down when it gets close.  
    }
    
    else
    {
       currentPoint = (currentPoint + 1) % waypoints.length;
 
    }
 
    movement.y -= gravity * Time.deltaTime;
    controller.Move(movement * Time.deltaTime);
 
    transform.LookAt(target);
}

I am pretty sure that this is where my issue is but I am just not seeing it. Any help would be greatly appreciated.

2

The Vector3(target - transform.position) is probably zero by the time the AI reaches it’s position. It causes Unity to freak out it seems. I have exactly the same problem, and I do not know how to fix it.