Navmesh agent velocity stops working with Navmesh obstacle in scene

Hi,

I have a player who is a navmesh agent who is controlled by the keyboard. The following script is for the player

Code (CSharp):

1.  public class Player : MonoBehaviour {
2.  
3.      NavMeshAgent myNavMeshAgent;
4.  
5.      void Awake()
6.      {
7.          myNavMeshAgent = GetComponent<NavMeshAgent>();
8.      }
9.  
10.      void FixedUpdate()
11.      {
12.          float v = Input.GetAxisRaw("Vertical");
13.          float h = Input.GetAxisRaw("Horizontal");
14.  
15.          Vector3 walkVector;
16.          float walkSpeed = 6f;
17.          //Move position
18.          walkVector = new Vector3(h, 0f, v);
19.          walkVector =  walkVector.normalized * walkSpeed;
20.          myNavMeshAgent.velocity = walkVector;
21.  
22.      }
23. }

This works fine but the moment I add a NavMesh Obstacle with carve set to true the player refuses to move! At first I thought it was because the player also has a rigidbody but when I removed that it still dosen't move!