No Debug after appleAuthManager.LoginWithAppleId

[D0raem0n231]

public void SignInWithAppleId(Action<FirebaseUser> firebaseAuthCallback)
{
    Debug.Log("SignInWithAppleId");

    var rawNonce = GenerateRandomString(32);
    Debug.Log("rawNonce : " + rawNonce);
    var nonce = GenerateSHA256NonceFromRawNonce(rawNonce);
    Debug.Log("nonce : " + nonce);

    var loginArgs = new AppleAuthLoginArgs(
        LoginOptions.IncludeEmail | LoginOptions.IncludeFullName,
        nonce);

    if (appleAuthManager != null)
    {
        Debug.Log("appleAuthManager != null");
    }

    this.appleAuthManager.LoginWithAppleId(
        loginArgs,
        (credential) =>
        {
            Debug.Log("this.appleAuthManager.LoginWithAppleId");

            IAppleIDCredential appleIdCredential = credential as IAppleIDCredential;

            if (appleIdCredential != null)
            {
                Debug.Log("appleIdCredential.FullName : "
                    + appleIdCredential.FullName.GivenName
                    + " "
                    + appleIdCredential.FullName.FamilyName);
                Debug.Log("appleIdCredential.Email : " + appleIdCredential.Email);

                FirebaseMessagingController.Instance.userName
                    = appleIdCredential.FullName.GivenName
                    + " "
                    + appleIdCredential.FullName.FamilyName;

                FirebaseMessagingController.Instance.eMail = appleIdCredential.Email;

                Debug.Log("SignInWithAppleId : appleIdCredential != null");

                PlayerPrefs.SetString(AppleUserIdKey, appleIdCredential.User);
                PlayerPrefs.SetString("userName", FirebaseMessagingController.Instance.userName);
                PlayerPrefs.SetString("Email", FirebaseMessagingController.Instance.eMail);

                Debug.Log("rawNonce : " + rawNonce);

                //PlayerPrefs.SetString("AppleUserId", credential.User);
                FirebaseSignIn(appleIdCredential, rawNonce, firebaseAuthCallback);                 
            }
            else
            {
                Debug.Log("appleIdCredential == null, credential type: " + credential.GetType().Name);
            }
        },
        (error) =>
        {
            Debug.Log("SignInWithAppleId : Error - " + error);
        });
}

Debug after appleAuthManager.LoginWithAppleId
"this.appleAuthManager.LoginWithAppleId"
There is nothing else. It would be nice if an error message appeared...

I confirmed the message that the credential was null.
The part that was working well is not working.

Recently, there have been updates to XCode and updates to Cocoapod.
Is it because of that? Can someone please tell me the answer.

[D0raem0n231]

When I go into the iPhone settings and go to the 'Apps using Apple ID' section, I found that even if I deleted the app, a record of logging in with my Apple ID remained, and because of that record, new logins were not working properly. I already knew, but a few months passed and I forgot all about it. I think the way to bypass this is QuickLogin, but it's a bit difficult to understand. Anyway, I am leaving a self-answer for those who are having the same problem. My holiday season has disappeared like this.