Tcp lost message

[CwjXFH]

Hi,
I created an asp.net core project and wrote logs into Graylog:

using Serilog;

var builder = WebApplication.CreateBuilder(args);
builder.Logging.ClearProviders();
builder.Host.UseSerilog((context, cfg) =>
{
    cfg.ReadFrom.Configuration(context.Configuration);
});

var app = builder.Build();
await app.RunAsync();

Environment:

Dependencies	Version
.NET	8
Serilog.Sinks.Graylog	3.1.1

Serilog config:

  "Serilog": {
    "MinimumLevel": {
      "Default": "Information"
    },
    "WriteTo": [
      {
        "Name": "Graylog",
        "Args": {
          "hostnameOrAddress": "82.156.64.210",
          "port": "12201",
          "transportType": "Tcp",
          "outputTemplate": "[{Timestamp:yyyy-MM-dd HH:mm:ss.fff} {Level:u3}] [{SourceContext:l}] {Message:lj} {NewLine}{Exception}"
        }
      },
      {
        "Name": "Console",
        "Args": {
          "outputTemplate": "[{Timestamp:yyyy-MM-dd HH:mm:ss.fff} {Level:u3}] [{SourceContext:l}] {Message:lj} {NewLine}{Exception}"
        }
      }
    ]
  }

When I run the project, it prints 4 logs on the console, but only one message in Graylog:

But, if I debug at TcpTransport.Send, it will write more than one message into Graylog:

In the TcpTransportClient.Send method some messages may not be successfully sent to the network, I'm not sure.