Blazor WASM authorisation failure trying to access Register Page: DenyAnonymousAuthorizationRequirement: Requires an authenticated user

I have been creating a project in Blazor WASM and using Identity Server

all was working fine and Solution was being built up. however at some stage i must have altered a setting on Identity server as this is now preventing non-logged in users from REgistering or accessing logon pages.

trying to navigate to https://localhost:44351/authentication/register i get the below console message in developer tools

info: Microsoft.AspNetCore.Authorization.DefaultAuthorizationService[2]
      Authorization failed. These requirements were not met:
      DenyAnonymousAuthorizationRequirement: Requires an authenticated user.

as far as i can tell all is fairly standard

Login Partial

@using Microsoft.AspNetCore.Identity
@using MDIS.SAW.Server.Models
@inject SignInManager<ApplicationUser> SignInManager
@inject UserManager<ApplicationUser> UserManager
@addTagHelper *, Microsoft.AspNetCore.Mvc.TagHelpers

@{
    var returnUrl = "/";
    if (Context.Request.Query.TryGetValue("returnUrl", out var existingUrl)) {
        returnUrl = existingUrl;
    }
}

<ul class="navbar-nav">
@if (SignInManager.IsSignedIn(User))
{
    <li class="nav-item">
        <a  class="nav-link text-dark" asp-area="Identity" asp-page="/Account/Manage/Index" title="Manage">Hello @User.Identity.Name!</a>
    </li>
    <li class="nav-item">
        <form class="form-inline" asp-area="Identity" asp-page="/Account/Logout" asp-route-returnUrl="/" method="post">
            <button  type="submit" class="nav-link btn btn-link text-dark">Logout</button>
        </form>
    </li>
}
else
{
    <li class="nav-item">
        <a class="nav-link text-dark" asp-area="Identity" asp-page="/Account/Register" asp-route-returnUrl="@returnUrl">Register</a>
    </li>
    <li class="nav-item">
        <a class="nav-link text-dark" asp-area="Identity" asp-page="/Account/Login" asp-route-returnUrl="@returnUrl">Login</a>
    </li>
}
</ul>

Login Display

<AuthorizeView>
    <Authorized>
        <a href="authentication/profile">Hello, @context.User.Identity.Name!</a>
        <button class="nav-link btn btn-link" @onclick="BeginSignOut">Log out</button>
    </Authorized>
    <NotAuthorized>
        <a href="authentication/register">Register</a>
        <a href="authentication/login">Log in</a>
    </NotAuthorized>
</AuthorizeView>

St artup.cs

using MDIS.SAW.Server.Data;
using MDIS.SAW.Server.Models;
using Microsoft.AspNetCore.Authentication;
using Microsoft.AspNetCore.Builder;
using Microsoft.AspNetCore.Hosting;
using Microsoft.EntityFrameworkCore;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Hosting;

namespace MDIS.SAW.Server
{
    public class Startup
    {
        public Startup(IConfiguration configuration)
        {
            Configuration = configuration;
        }

        public IConfiguration Configuration { get; }

        // This method gets called by the runtime. Use this method to add services to the container.
        // For more information on how to configure your application, visit https://go.microsoft.com/fwlink/?LinkID=398940
        public void ConfigureServices(IServiceCollection services)
        {
            services.AddDbContext<SawDbContext>(options =>
                options.UseSqlServer(
                    Configuration.GetConnectionString("DefaultConnection")));

            services.AddDatabaseDeveloperPageExceptionFilter();

            services.AddDefaultIdentity<ApplicationUser>(options => options.SignIn.RequireConfirmedAccount = true)
                .AddEntityFrameworkStores<SawDbContext>( );

            services.AddIdentityServer()
                .AddApiAuthorization<ApplicationUser, SawDbContext>();

            services.AddAuthentication()
                .AddIdentityServerJwt();

            services.AddControllersWithViews();
            services.AddRazorPages();
        }

        // This method gets called by the runtime. Use this method to configure the HTTP request pipeline.
        public void Configure(IApplicationBuilder app, IWebHostEnvironment env)
        {
            if (env.IsDevelopment())
            {
                app.UseDeveloperExceptionPage();
                app.UseMigrationsEndPoint();
                app.UseWebAssemblyDebugging();
            }
            else
            {
                app.UseExceptionHandler("/Error");
                // The default HSTS value is 30 days. You may want to change this for production scenarios, see https://aka.ms/aspnetcore-hsts.
                app.UseHsts();
            }

            app.UseHttpsRedirection();
            app.UseBlazorFrameworkFiles();
            app.UseStaticFiles();

            app.UseRouting();

            app.UseIdentityServer();
            app.UseAuthentication();
            app.UseAuthorization();

            app.UseEndpoints(endpoints =>
            {
                endpoints.MapRazorPages();
                endpoints.MapControllers();
                endpoints.MapFallbackToFile("index.html");
            });
        }
    }
}

Not sure what else i need to share