cloudssave exception : access token is missing unity

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I have tried Google Play Gaming Services, Firebase Authentication, Facebook login, and the last one and latest one, Unity player accounts, every time its just ended up with Cloud Save exception: access token is missing unity, but when I am trying to do anonymous sign-in its just working perfectly, right now I wanted to use unity player accounts.

Here are my two scripts:

LoginController.cs

using System;
using System.Threading.Tasks;
using Unity.Services.Authentication;
using Unity.Services.Authentication.PlayerAccounts;
using Unity.Services.Core;
using UnityEngine;

public class LoginController : MonoBehaviour
{
    public event EventHandler<SignedInEventArgs> OnSignedIn;

    private void Awake()
    {
        UnityServices.InitializeAsync(); // Remove .Forget() if not using UniTask
        PlayerAccountService.Instance.SignedIn += HandleSignedIn;
    }

    private async void HandleSignedIn()
    {
            Debug.Log("----------Token script is working right now");
        try
        {
            Debug.Log("----------its trying to access the token");
            var accessToken = PlayerAccountService.Instance.AccessToken;
            await SignInWithUnityAsync(accessToken);
        }
        catch (Exception ex)
        {
            Debug.LogError($"Exception during sign-in: {ex.Message}");
        }
    }

    public async Task InitSignIn()
    {
        await PlayerAccountService.Instance.StartSignInAsync();
    }

    private async Task SignInWithUnityAsync(string accessToken)
    {
        try
        {
            await AuthenticationService.Instance.SignInWithUnityAsync(accessToken);
            Debug.Log("SignIn is successful.");

            var playerInfo = AuthenticationService.Instance.PlayerInfo;
            var playerName = await AuthenticationService.Instance.GetPlayerNameAsync();

            // Log the player ID
            Debug.Log($"Player ID: {playerInfo.Id}");

            OnSignedIn?.Invoke(this, new SignedInEventArgs(playerInfo, playerName));
        }
        catch (AuthenticationException ex)
        {
            Debug.LogError($"Authentication Exception: {ex.Message}");
        }
        catch (RequestFailedException ex)
        {
            Debug.LogError($"Request Failed Exception: {ex.Message}");
        }
    }

    private void OnDestroy()
    {
        PlayerAccountService.Instance.SignedIn -= HandleSignedIn;
    }
}

public class SignedInEventArgs : EventArgs
{
    public PlayerInfo PlayerInfo { get; }
    public string PlayerName { get; }

    public SignedInEventArgs(PlayerInfo playerInfo, string playerName)
    {
        PlayerInfo = playerInfo;
        PlayerName = playerName;
    }
}

UILogin.cs

using System;
using TMPro;
using UnityEngine;
using UnityEngine.UI;
using System.Threading.Tasks;

public class UILogin : MonoBehaviour
{
    [SerializeField] private Button loginButton;
    [SerializeField] private TMP_Text userIdText;
    [SerializeField] private Transform loginPanel;
    [SerializeField] private Transform userPanel;
    [SerializeField] private LoginController loginController;

    private void OnEnable()
    {
        loginButton.onClick.AddListener(LoginButtonPressed);
        loginController.OnSignedIn += HandleSignedIn;
    }

    private void HandleSignedIn(object sender, SignedInEventArgs args)
    {
        loginPanel.gameObject.SetActive(false);
        userPanel.gameObject.SetActive(true);
        userIdText.text = $"id_{args.PlayerInfo.Id}";
        Debug.Log($"Player ID: {args.PlayerInfo.Id}, Player Name: {args.PlayerName}");
    }

    private void LoginButtonPressed()
    {
        loginController.InitSignIn().ContinueWith(task =>
        {
            if (task.IsFaulted)
            {
                Debug.LogError($"Error during login: {task.Exception}");
            }
        });
    }

    private void OnDisable()
    {
        loginButton.onClick.RemoveListener(LoginButtonPressed);
        loginController.OnSignedIn -= HandleSignedIn;
    }
}

I have done every steps shown by many youtubers, this is the issue none has answered. Please help.