Duplicating NavMesh Object.

Heya.
I have a strange problem. I've made a NavMesh object, and I need to dublicate it. But when I'm doing it, these objects are not moving.

There's a code of Nav Meshed Object:

Code (JavaScript):

1. #pragma strict
2. private var nav : NavMeshAgent;
3. private var target : Transform;
4. var attackDistance : float = 5.0f;
5. var seeDistance : float = 30.5f;
6. var idleAnimation : AnimationClip;
7. var walkAnimation : AnimationClip;
8. function Start () {
9. GetComponent.<Animation>().AddClip (idleAnimation, "idle");
10. GetComponent.<Animation>().AddClip (walkAnimation, "walk");
11. nav = GetComponent(NavMeshAgent);
12. target = GameObject.FindWithTag("Player").transform;
13. }
14.  
15. function Update () {
16. if(Vector3.Distance(transform.position, target.transform.position) < seeDistance){
17. nav.enabled = true;
18. nav.SetDestination(target.position);
19. GetComponent.<Animation>().CrossFade("walk");
20. } else {
21. GetComponent.<Animation>().CrossFade("idle");
22. nav.enabled = false;
23. }
24. }

Thanks for your help.