Object not updating on host

Basically what I'm doing is when the player clicks a line, it will display (enable the Renderer and slap a material on it) and show on all clients. When the host performs this operation, it shows on all clients perfectly. However, when a client performs this operation it does not show on the host. Why is this?

Code:

 //Player Click
     void OnMouseDown() {
         //Place line
         if (!GetComponent<PlayerClick>().linePlaced) {
             GetComponent<PlayerClick>().linePlaced = true;
             GetComponent<Renderer> ().enabled = true;
             GetComponent<Renderer> ().material = lineMat;
             if (isLocalPlayer) {
                 string id = gameObject.name;
                 CmdPlaceLine (id);
                 
             }
         }

 //On click place a line at the mouse location
     [Command]
     void CmdPlaceLine(string id)
     {
         linePlaced = true;
         GameObject go = GameObject.Find (id);
         go.GetComponent<Renderer> ().enabled = true;
         go.GetComponent<Renderer> ().material = lineMat;
     }

 //Check if a player placed a line and update on clients if so
     [ClientRpc]
     void RpcChangeLineAppearance()
     {
         StartCoroutine(CheckIfPlayerPlacedLine());
     }
     
     IEnumerator CheckIfPlayerPlacedLine()
     {
         if (linePlaced) {
             yield return new WaitForSeconds (0.2f);
             GetComponent<Renderer> ().enabled = true;
             GetComponent<Renderer> ().material = lineMat;
         }
     }


 // Update is called once per frame
     void Update () {
         StartCoroutine(CheckIfPlayerPlacedLine());
         if(isServer)
             RpcChangeLineAppearance();
         }
     }