Asp.net core Identity successful login redirecting back to login page

Question

I have a problem where the asp.net identity framework is redirecting the user back to the login page after they have logged in successfully.

This is using the stand

Answer 1

In addition to @Kirk Larkin answer if you use .net core 3 (in this time is preview version)

put your "app.UseEndpoints" in startup.cs to end of the code block.

for example it should be in this order

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

        app.UseEndpoints(endpoints =>
        {
            endpoints.MapControllerRoute(
                name: "default",
                pattern: "{controller=Home}/{action=Index}/{id?}");
            endpoints.MapRazorPages();
        });