HttpClient API calls from Maui Blazor not working with Android Emulator

I'm creating a mobile app with Maui Blazor for the first time (also first mobile app). Since it's my first time I followed a tutorial where they created a minimal API which worked both with Windows Application and Android emulator for me.

Then I made a new ASP.NET Core Web API project which I want to use instead. The api-calls works in swagger and I when I run a windows application but not when I run the Android emulator where it casts an exception in the service class on the line:

HttpResponseMessage response = await _httpClient.GetAsync($"{_url}/item");

UPDATE:The exception is:

"One or more errors occurred. (java.security.cert.CertPathValidatorException: Trust anchor for certification path not found.)"

InnerException:

• System.Net.WebException
• base: System.InvalidOperationException
• status: System.Net.WebExceptionStatus.UnknownError

Service class:

private readonly HttpClient _httpClient;private readonly string _baseAddress;private readonly string _url;private readonly JsonSerializerOptions _jsonSerializerOptions;public DataService(HttpClient httpClient){               _httpClient = httpClient;    _baseAddress = DeviceInfo.Platform == DevicePlatform.Android ? "http://10.0.2.2:XXXX" : "https://localhost:XXXX";    _url = $"{_baseAddress}/api";    _jsonSerializerOptions = new JsonSerializerOptions    {    PropertyNamingPolicy = JsonNamingPolicy.CamelCase    };}public async Task<List<Item>> GetAll(){    List<Item> items = new List<Item>();    if (Connectivity.Current.NetworkAccess != NetworkAccess.Internet)    {        Debug.WriteLine("No internet access.");        return items;    }    try    {        // ERROR HERE        HttpResponseMessage response = await _httpClient.GetAsync($"{_url}/item");        if (response.IsSuccessStatusCode)        {            string content = await response.Content.ReadAsStringAsync();            items = JsonSerializer.Deserialize<List<Item>>(content,                    _jsonSerializerOptions);        }        else        {            Debug.WriteLine("Non Http 2xx response");        }    }    catch (Exception ex)    {        Debug.WriteLine($"Exception: {ex.Message}");    }    return items;}

API program.cs

var builder = WebApplication.CreateBuilder(args);builder.Services.AddControllers();builder.Services.AddDbContext<AppDbContext>(options =>{    options.UseSqlServer(builder.Configuration.GetConnectionString("DefaultConnection"));});builder.Services.AddEndpointsApiExplorer();builder.Services.AddSwaggerGen();var app = builder.Build();if (app.Environment.IsDevelopment()){    app.UseSwagger();    app.UseSwaggerUI();}app.UseHttpsRedirection();app.UseAuthorization();app.MapControllers();app.Run();

Tried the following:

• Making API calls with URL
• Checked network connection on the emulator
• Added CORS to my API

Since it worked before I suspect it has to do with my API but I don't know what.

Any help would be appreciated.