Bot C# on VkNet. Why doesn't it catch all events?

Question

C++ / C#

Good afternoon. Why can't I catch all events? I try to write messages in a conversation with this group, but not everything is displayed in the console.

while (true) // Бесконечный цикл, получение обновлений
            {
                var s = vkApi.Groups.GetLongPollServer(190776459);
                var poll = vkApi.Groups.GetBotsLongPollHistory(
                   new BotsLongPollHistoryParams()
                   { Server = s.Server, Ts = s.Ts, Key = s.Key, Wait = 25 });
                if (poll.Updates == null) continue; // Проверка на новые события

                foreach (var a in poll.Updates)
                {
                    if (a.Type == GroupUpdateType.MessageNew)
                    {
                        Console.Write(a.MessageNew.Message.Text);
                    }
                }
            }