Third Party Line Renderer not visible to other Players | Photon PUN 2

I'm trying to sync a Line Renderer which is given out by a Grappling Gun and it doesn't seem to be working. I've seen other forums, answers, etc but I'm just stuck with this for the past 2 days.

Here is the code which I'm using:

Code (CSharp):

1. //The Script used to draw the Grappling Rope!
2.  
3. using System.Collections;
4. using System.Collections.Generic;
5. using Photon.Pun;
6. using UnityEngine;
7.  
8. public class GrapplingRope : MonoBehaviour
9. {
10.     //References
11.     [Header("References")]
12.     [SerializeField] private GrapplingGun grapplingGun;
13.     [SerializeField] private AnimationCurve affectCurve;
14.     [SerializeField] private PhotonView photonView;
15.  
16.     [Header("Settings")]
17.     [SerializeField] private int quality;
18.     [SerializeField] private float damper;
19.     [SerializeField] private float strength;
20.     [SerializeField] private float velocity;
21.     [SerializeField] private float waveCount;
22.     [SerializeField] private float waveHeight;
23.  
24.     private Spring spring;
25.     private LineRenderer lr;
26.     private Vector3 currentGrapplePosition;
27.  
28.     private bool calledOnlyOnce = false;
29.  
30.     [HideInInspector] public bool viewIsMine;
31.  
32.     private void Awake()
33.     {
34.         if (photonView.IsMine)
35.         {
36.             lr = GetComponent<LineRenderer>(); //Get the Line Renderer component
37.             spring = new Spring(); //Create the Spring component
38.             spring.SetTarget(0); //Set the Spring target to 0
39.         }
40.     }
41.  
42.     //Method called after Update Method
43.     private void LateUpdate()
44.     {
45.         if (viewIsMine)
46.         {
47.             photonView.RPC("DrawRope", RpcTarget.AllBuffered);
48.         }
49.     }
50.  
51.     [PunRPC]
52.     private void DrawRope()
53.     {
54.         if (!calledOnlyOnce)
55.         {
56.             spring = new Spring(); //Create the Spring component
57.             spring.SetTarget(0); //Set the Spring target to 0
58.             lr = GetComponent<LineRenderer>(); //Get the Line Renderer component
59.  
60.             calledOnlyOnce = true;
61.         }
62.  
63.         if (!grapplingGun.IsGrappling()) //If not "grappling"
64.         {
65.             currentGrapplePosition = grapplingGun.gunTip.position; //Set the grappling position
66.             spring.Reset(); //Set the spring's velocity and value to 0
67.  
68.             if (lr.positionCount > 0) //If line renderer's position is greater than 0
69.             {
70.                 lr.positionCount = 0; //Set the  line renderer's position to 0
71.             }
72.             return; //Return
73.         }
74.  
75.         if (lr.positionCount == 0) //If line renderer's position is equal to 0
76.         {
77.             spring.SetVelocity(velocity); //Set the velocity value
78.             lr.positionCount = quality + 1; //Set the position count value
79.         }
80.  
81.      
82.         spring.SetDamper(damper); //Set the damper value
83.         spring.SetStrength(strength); //Set the strength value
84.         spring.Update(Time.deltaTime); //Update the spring according to the time
85.      
86.         var grapplePoint = grapplingGun.GetGrapplePoint();
87.         var gunTipPosition = grapplingGun.gunTip.position;
88.         var up = Quaternion.LookRotation((grapplePoint - gunTipPosition).normalized) * Vector3.up;
89.  
90.         currentGrapplePosition = Vector3.Lerp(currentGrapplePosition, grapplePoint, Time.deltaTime * 12f);
91.  
92.         for (var i = 0; i < quality + 1; i++)
93.         {
94.             var delta = i / (float)quality;
95.             var offset = up * waveHeight * Mathf.Sin(delta * waveCount * Mathf.PI) * spring.Value *
96.                          affectCurve.Evaluate(delta);
97.  
98.             lr.SetPosition(i, Vector3.Lerp(gunTipPosition, currentGrapplePosition, delta) + offset);
99.         }
100.     }
101. }

And here is a video explaining the problem:

I think I'm missing something very basic here so any help would be appreciated!