I am Posting a JSON in .Net Maui to HTTPClient that works correctly the most time. But sometimes it fails.
I have RestService class that contains a method called PostJason and my code is inside try/catch but when it reaches the POST line, the cursor of the program dissapear and it doesn´t continues the program and never pass through catch.
I have tested it with a break point and that is the line that sometimes fails.

Repeat the most of the time that I call this method, it works Ok and the Post works fine… Maybe 1 in 30 times has an error.. I don´t post all my code because is very extensive…

The json parameter is passed when I call this class..

    public static class JsonCreatorHelper
    {
        public static string CreateInvoiceJson(Order order)
        {
            var invoice = new
            {
                id = order.Id,

                reference = order.Reference,

                customer_id = order.Client.idEmpresa,              
            
                invoice_date = order.DateCreation.ToString("yyyy-MM-ddTHH:mm:ss.ffffffZ"),

                importe_anticipo = order.AdvanceAmount,

                lines = CreateOrderLinesJson(order.OrderLines)
            };

            return JsonConvert.SerializeObject(invoice, Formatting.Indented);
        }

        private static List<object> CreateOrderLinesJson(List<OrderLines> orderLines)
        {
            var lines = new List<object>();

            foreach (var line in orderLines)
            {
                var lineJson = new
                {
                    id = line.Id,

                    article_id = line.ProductId,

                    external_id = line.ProductId,                    

                    total = line.Total
                };

                lines.Add(lineJson);
            }

            return lines;
        }
    }
}

Could you tell me why can it happen and if there is any other way to solve this?

public static class RestService
{
    //Fields

    private static HttpClient _client;

    private static JsonSerializerOptions _serializerOptions;

    private const string _baseUrl = "https://abetekapimng.azure-api.net";


    //Constructor

    static RestService()
    {
     _client = new HttpClient();

     _serializerOptions = new JsonSerializerOptions();
    }


   //Method

   private static async Task PostJason(string endpoint, string json)
   {
     try
     {      
         var url = $"{_baseUrl}{endpoint}";

         StringContent content = new StringContent(json, Encoding.UTF8, "application/json");                      

         var response = await _client.PostAsync(url, content); //This is the line that sometimes fails; it doesn´t continue to next line or catch

         response.EnsureSuccessStatusCode();

         string responseContent = await response.Content.ReadAsStringAsync();

         
     }
     catch
     {
         
         await MessagesHelper.DisplayAlert("Error al sincronizar el albaran");
                         
     }`
 

I need to understand the problem