Trying to setup a method receiving data from Forms webhooks and have an APiController to recieve the data. Trying the address from Postman all works fine but when setting up the form with the same webhook url the recieving method is not triggered. No error i visible inte logs and the EmailActor is working. How do I debug this?

The receiving controller looks like this trying to debug this

[RoutePrefix("api/formswebhooks")]
    public class FormsWebhooksController : ApiController
    {
        private static readonly ILogger Logger = LogManager.GetLogger(typeof(FormsWebhooksController));

        [Route("genericform")]
        [HttpPost]
        public string GenericForm([FromBody]JToken jsonbody)
        {
            try
            {
                string name = jsonbody["Name"]?.ToString();
                File.WriteAllText(@"C:\OutputFolder\webhook.txt", jsonbody.ToString());
            }
            catch (Exception e)
            {
                Logger.Error("Failed to process webhook!", e);
            }

            return string.Empty;
        }
    }

Update: 

Running the site in IISExpress from Console only displays this call, as otherwise would display the webhook call aswell as explained here: [Episerver form addon] webhook is not being fired | Optimizely De