Redirect back to Android App Not working fully

I built this example with .NET 10 preview and on android after authentication which is valid it pops up a dialog to select from apps.

https://github.com/Azure-Samples/ms-identity-ciam-dotnet-tutorial/tree/main/1-Authentication/2-sign-in-maui

The only changes I made to the sample are the client id. The updatemsal.ps1 is a script that updates the msal from appsetttings.json.



Using an older method for MSAL I don't see this problem. After I click sign in on this image it goes straight back to the app. This older method is using policy based method I believe.

AuthenticationResult result = await PCAWrapperB2C.Instance.AcquireTokenInteractiveAsync(B2CConstants.Scopes);

private PCAWrapperB2C()
{
// Create PCA once. Make sure that all the config parameters below are passed
PCA = PublicClientApplicationBuilder
.Create(B2CConstants.ClientID)
.WithExperimentalFeatures() // this is for upcoming logger
.WithLogging(_logger)

.WithB2CAuthority(B2CConstants.AuthoritySignInSignUp)
.WithIosKeychainSecurityGroup(B2CConstants.IOSKeyChainGroup)
.WithRedirectUri(B2CConstants.RedirectUri)
.Build();
}

public static string Tenant = "MyNextbook.onmicrosoft.com";
public static string AzureADB2CHostname = "MyNextbook.b2clogin.com";

public static string ClientID = "b3f22bxxx...";

public static readonly string RedirectUri = $"msal{ClientID}://auth";

public static string PolicySignUpSignIn = "B2C_1_MNB_SignInSignUp";

public static string[] Scopes = {
"https://MyNextBook.onmicrosoft.com/api/user_impersonation"
};

public static readonly string AuthorityBase = $"https://{AzureADB2CHostname}/tfp/{Tenant}/";
public static readonly string AuthoritySignInSignUp = $"{AuthorityBase}{PolicySignUpSignIn}";

Start with 1-Authentication/2-sign-in-maui and inspect the Android sign-in flow, the updatemsal.ps1 script, and the PCAWrapperB2C AcquireTokenInteractiveAsync configuration shown in the report. Reproduce the authentication flow on Android using the current sample and compare it with the older policy-based method. Done means a valid sign-in returns directly to the app without an app-selection dialog.

Written by the indexing model from the issue text.