Create backend user not working in Umbraco9 RC3 - umbraco

Question

I am trying to get external login with identityserver4 to work. It almost works, however, it does not auto-create or links when an external user is logged in. If I create a user in Umbraco am able to link the user manually.
I have the following configured - but I must be missing something
.AddBackOfficeExternalLogins(builder =>
builder.AddBackOfficeLogin(
build =>
build.AddOpenIdConnect(
build.SchemeForBackOffice(OpenIdConnectDefaults.AuthenticationScheme),
"External login",
options =>
{
// use cookies
options.SignInScheme = CookieAuthenticationDefaults.AuthenticationScheme;
// pass configured options along
// Use the authorization code flow
options.AuthenticationMethod = OpenIdConnectRedirectBehavior.RedirectGet;
options.RequireHttpsMetadata = false;
options.Authority = "https://localhost:3930";
options.MetadataAddress = "https://localhost:3930/.well-known/openid-configuration";
options.ClientSecret = "**";
options.ClientId = "***";
options.GetClaimsFromUserInfoEndpoint = true;
options.ResponseType = "code id_token";
options.CallbackPath = new PathString("/");
options.RemoteSignOutPath = "/oidc-signout";
options.SignedOutRedirectUri = "**";
options.Scope.Clear();
options.Scope.Add("openid");
options.Scope.Add("profile");
options.Scope.Add("email");
options.SaveTokens = true;
options.UsePkce = true;
options.TokenValidationParameters = new Microsoft.IdentityModel.Tokens.TokenValidationParameters
{
NameClaimType = "name",
RoleClaimType = "role",
};
}
),
options =>
new BackOfficeExternalLoginProviderOptions(
"btn-primary", // button stype
"fa-windows", // icon
new ExternalSignInAutoLinkOptions(autoLinkExternalAccount: true, defaultUserGroups: new[] { Constants.Security.EditorGroupAlias }, defaultCulture: "en-US", allowManualLinking: true)
{
OnAutoLinking = (user, loginInfo) =>
{
//
},
OnExternalLogin = (user, loginInfo) =>
{
return true;
}
},
true, // deny local login
false, // autoredirect local login to external login
null) // custom backoffice view
)
)