OData Count and ODATA context fields not in response

Question

I would like to use ODATA. Unfortunately I get neither count nor odata.context back. Select, filter, orderBy are working though. Does anyone have an idea where my error is?

[AllowAnonymous]
[ApiController]
[Route("api/v1/wea")]
[Produces("application/json")]
[ODataRouteComponent("api/v1/wea")]
public class WeatherForecastODataController : ODataController
{

  [HttpGet]
  [EnableQuery]
  public IEnumerable<WeatherForecast> Get()
  {
    _logger.LogWarning("Get Forecast");
    return _forecasts;
  }
}

 public static IMvcBuilder AddODataOptions(this IMvcBuilder builder)
        {
            builder.AddOData(options => {
                var defaultBatchHandler = new DefaultODataBatchHandler();
                defaultBatchHandler.MessageQuotas.MaxNestingDepth = 2;
                defaultBatchHandler.MessageQuotas.MaxOperationsPerChangeset = 10;
                defaultBatchHandler.MessageQuotas.MaxReceivedMessageSize = 100;

                var model1 = EdmBuilder.BuildV1();

                
                options.Select().Filter().OrderBy().Count().SetMaxTop(2).Expand();
                options.AddRouteComponents("api/v1", model1, defaultBatchHandler);
            });
            return builder;
        }