Client's list of game object prefabs not shown in the Server. How do I solve this?

I am using Unity 5.1.3f1, and the new UNET Networking API. I am making a simple RTS game in Unity.

I used a game object prefab to spawn in via Network Manager's Spawn Info properties in the Inspector. This game object prefab then spawns in a list of game object prefabs, which are managers that manage player actions, for my game.

The problem is that when the client connects to the server, the server does not see the client's list of game object prefabs.

The left side is the client, the right side is the server. I am pretty sure I registered all of the list of game object prefabs in the Network Manager. So, I can only isolate the problem down to "client's game objects are not shown in the server."

This is the Prefab Initialization code:

 using UnityEngine;
 using UnityEngine.Networking;
 using System;
 using System.Collections;
 using System.Collections.Generic;
 using Common;
 
 public class PrefabInitialization : NetworkBehaviour {
     public static PrefabInitialization Instance;
 
     public List<GameObject> gameObjectList;
     public CommonUnitManager unitManager;
     public CommonInputManager inputManager;
     public CommonAttackManager attackManager;
     public CommonMergeManager mergeManager;
     public CommonSplitManager splitManager;
 
     public void Awake() {
         PrefabInitialization.Instance = this;
     }
 
     private void SpawnObject(int i) {
         GameObject obj = GameObject.Instantiate(this.gameObjectList[i], Vector3.zero, Quaternion.identity) as GameObject;
         //GameObject obj = this.gameObjectList[i];
         obj.name = obj.name.Substring(0, obj.name.Length - "(Clone)".Length);
         if (obj.tag.Equals("Input_Manager")) {
             this.inputManager = obj.GetComponent<CommonInputManager>();
             this.inputManager.SetUnitManager(this.unitManager);
             this.inputManager.SetMergeManager(this.mergeManager);
             this.inputManager.SetAttackManager(this.attackManager);
             this.inputManager.SetSplitManager(this.splitManager);
         }
         else if (obj.tag.Equals("Merge_Manager")) {
             this.mergeManager = obj.GetComponent<CommonMergeManager>();
             this.mergeManager.unitManager = this.unitManager;
         }
         else if (obj.tag.Equals("Split_Manager")) {
             this.splitManager = obj.GetComponent<CommonSplitManager>();
         }
         else if (obj.tag.Equals("Attack_Manager")) {
             this.attackManager = obj.GetComponent<CommonAttackManager>();
         }
         else if (obj.tag.Equals("Unit_Manager")) {
             this.unitManager = obj.GetComponent<CommonUnitManager>();
         }
         else if (obj.tag.Equals("RPCLess_Unit")) {
             CommonUnit commonUnit = obj.GetComponent<CommonUnit>();
             commonUnit.transform.position = this.transform.position;
             commonUnit.unitManager = this.unitManager;
             if (!this.unitManager.getAllObjects().Contains(obj)) {
                 this.unitManager.getAllObjects().Add(obj);
             }
         }
         NetworkServer.Spawn(obj);
     }
 
     //public override void OnStartServer() {
     //    if (this.isServer) {
     //        this.SpawningInitialization();
     //    }
     //}
 
     public void SpawningInitialization() {
         for (int i = 0; i < this.gameObjectList.Count; i++) {
             this.gameObjectList[i].SetActive(true);
             SpawnObject(i);
         }
     }
 
     public override void OnStartLocalPlayer() {
         if (this.isClient) {
             this.SpawningInitialization();
         }
     }
 }

What am I missing? Thanks in advance.