Two Cloned Objects with the same Animator, only one object's transitions work

I followed this tutorial of making enemy ai:

But when I try to clone the object, the clone does not switch animation state. But when I delete the original and leave only the clone, it works. Why is it only one works at a time? The movement works, just not the animation transitions. Am I doing something wrong?

Here's the code:

 using UnityEngine;
 using System.Collections;
 
 public class EnemyBehaviorScript : MonoBehaviour {
 
     public Transform Player;
     public float LookSpeed;
     public float MovementSpeed;
     public float LookDistance;
     public float AttackDistance;
     static Animator anim;
     Vector3 direction;
 
     void Start () 
     {
         anim = GetComponent<Animator> ();
     }
 
     void Update () 
     {
         direction = Player.position - this.transform.position;
         direction.y = 0;
 
         if (Vector3.Distance (Player.position, this.transform.position) < LookDistance) 
         {
             this.transform.rotation = Quaternion.Slerp (this.transform.rotation, Quaternion.LookRotation (direction), LookSpeed);
             if (direction.magnitude > AttackDistance - 0.5f) {
                 anim.SetBool ("isWalking", true);
                 anim.SetBool ("isAttacking", false);
                 anim.SetBool ("isIdle", false);
                 this.transform.Translate (0, 0, MovementSpeed*Time.deltaTime);
 
                 if (direction.magnitude < AttackDistance) 
                 {
                     anim.SetBool ("isWalking", false);
                     anim.SetBool ("isAttacking", true);
                     anim.SetBool ("isIdle", false);
                 }
             }
         }
         else 
         {
             anim.SetBool ("isWalking", false);
             anim.SetBool ("isAttacking", false);
             anim.SetBool ("isIdle", true);
         }
     }
 }