Ray from camera not working in VR?

Hi, right now I have code in place to pick up a cube in my game. The code is in a child of a main camera, which itself is a child of a RigidBodyFPSController.

 public class PickUpScript : MonoBehaviour {
 
     GameObject MainCamera;
     bool carrying = false;
     GameObject carriedObject;
     public float distance;
     public float smooth;
     // Use this for initialization
     void Start () {
         MainCamera = GameObject.Find("MainCamera"); 
     }
     
     // Update is called once per frame
     void Update () {
 
         if(carrying == true)
         {
             carry(carriedObject);
             checkDrop();
         }
         else
         {
             pickUp();
         }
     
     }
 
     void carry(GameObject o)
     {
         
         o.transform.position = Vector3.Lerp(o.transform.position, MainCamera.transform.position + MainCamera.transform.forward * distance, Time.deltaTime * smooth);
 
     }
 
     void pickUp()
     {
         if(Input.GetKeyDown(KeyCode.E))
         {
             int x = Screen.width / 2;
             int y = Screen.height / 2;
 
             Ray ray = MainCamera.GetComponent<Camera>().ScreenPointToRay(new Vector3(x, y));
 
             RaycastHit hit;
 
             if(Physics.Raycast(ray, out hit))
             {
                 Debug.Log(hit.collider);
 
                 PickUpAble p = hit.collider.GetComponent<PickUpAble>();
 
                 if(p != null)
                 {
                     carrying = true;
                     carriedObject = p.gameObject;
                     p.gameObject.GetComponent<Rigidbody>().isKinematic = true;
                 }
             }
         }
     }
 
     void checkDrop()
     {
         if(Input.GetKeyDown(KeyCode.E))
         {
             dropObject();
         }
     }
 
     void dropObject()
     {
         carrying = false;
         carriedObject.gameObject.GetComponent<Rigidbody>().isKinematic = false;
         carriedObject = null;
     }
 }

When i'm testing it normally, the code works fine. However, when I try doing it with my Oculus DK2, the ray doesnt hit the cube unless I have my mouse in a certain place up or down the screen, and the cube only follows the mouse, not when I look around with the headset.

What's really frustrating is that the code was working fine in VR, then I saved my scene, my project, closed Unity, and then reopened it. I didn't touch anything, everything was exactly where it was, and the code stopped working. How can I get it to work again?

Thanks.