NetworkObject not spawning on UI for clients

My plan is to spawn a NetworkObject, which is a card, into a UI canvas called Hand. After Spawning the card, it only shows on the Host UI and not the Clients'. I then tried putting a NetworkObject Component on the Hand UI to see if that was the problem, but the client still doesnt see the cards, and it also says only the server can change parents.

Code (CSharp):

1. using System.Collections;
2. using System.Collections.Generic;
3. using UnityEngine;
4. using Unity.Netcode;
5.  
6. public class PlayerManager : NetworkBehaviour
7. {
8.     public NetworkObject cardPrefab;
9.     public RectTransform handTransform;
10.    
11.  
12.     public override void OnNetworkSpawn()
13.     {
14.         handTransform = GameObject.Find("Hand").GetComponent<RectTransform>();
15.     }
16.  
17.     public void Update()
18.     {
19.         if(!IsOwner) { return; }
20.         if (!Input.GetKeyDown(KeyCode.Space)) { return; }
21.  
22.         SpawnCardServerRpc();
23.     }
24.    
25.     [ServerRpc]
26.     public void SpawnCardServerRpc()
27.     {
28.         NetworkObject networkCard = Instantiate(cardPrefab, handTransform);
29.         networkCard.SpawnWithOwnership(OwnerClientId);
30.     }
31. }
32.