C# Assigning EdgeCollider2D's Points

I'm trying to create randomized lightning script. I was able to assign the LineRenderer's Positions But when I tried assigning EdgeCollider2D's Points it only bobs back and forth along with LineRenderer. I checked the actual component and it is using the same parameters as LineRenderer. Is there something I'm missing?

 using UnityEngine;
 using System.Collections;
 using Generic = System.Collections.Generic;
 public class beamScript : MonoBehaviour {
     public Transform startPos;
     public Transform beam;
     public float destFloat = 15f;
     public float timeToUpdate = 0.05f;
     public float timeToPowerUp = 0.5f;
     public float keyVertexDist = 2.0f;
     int numVertices;
     float lastUpdate;
  
     // Use this for initialization
     void Start () {
         numVertices = 0;
         lastUpdate = 0.0f;
     }
  
     // Update is called once per frame
     void Update () {
         if(beam.position.z < destFloat){
         beam.Translate(Vector3.forward * 5 * Time.deltaTime * (1.0f / timeToPowerUp));
         }
         if ((Time.time - lastUpdate) < timeToUpdate)
             return;
         lastUpdate = Time.time;
         numVertices = Mathf.RoundToInt(Vector3.Distance(startPos.position, beam.position) / keyVertexDist);
         Vector3 currentV = startPos.localPosition;
         Vector3[] keyVertices = new Vector3[numVertices];
         GetComponent<LineRenderer>().SetVertexCount(numVertices);
         Vector2[] points = new Vector2[]{};
         for (int i = 0; i < numVertices; i++) {
             float vfl = (Random.value * 4.0f - 2.0f);
             Vector3 v = new Vector3(
             currentV.x + vfl,
             currentV.y + vfl,
             currentV.z + vfl
             );
             GetComponent<LineRenderer>().SetPosition(i, v);
             keyVertices[i] = v;
             points = ConvertArray(keyVertices);
             currentV += (beam.localPosition - startPos.localPosition) / numVertices;
         }
         points[0] = startPos.localPosition;
         points[numVertices-1] = beam.localPosition;
         GetComponent<EdgeCollider2D>().points = points;
         GetComponent<LineRenderer>().SetPosition(0, startPos.localPosition);
         GetComponent<LineRenderer>().SetPosition(numVertices-1, beam.localPosition);
     }
  
     Vector2[] ConvertArray(Vector3[] v3){
         Vector2 [] v2 = new Vector2[v3.Length];
         for(int i = 0; i < v3.Length; i++){
             Vector3 tempV3 = v3[i];
             v2[i] = new Vector2(tempV3.x, tempV3.y);
         }
         return v2;
     }