Why do I encounter anomalies when subscribing

[MuYangRenHR]

I used the following code for subscription testing, but some unexpected situations occurred:
`using System;
using System.Threading;
using System.Threading.Tasks;
using MQTTnet;
using MQTTnet.Client;
namespace ConsoleApp1
{
internal class Program
{
private static MqttClientOptions Options
{
get
{
MqttClientOptionsBuilder builder = new MqttClientOptionsBuilder();

            builder.WithTcpServer("127.0.0.1", 6000);
            builder.WithCleanSession(false);
            var id = Guid.NewGuid().ToString("N");
            builder.WithClientId(id);
            return builder.Build();
        }
    }
    static void Main()
    {
        Task.Run(async() =>
        {
            MqttFactory _mqttFactory = new MqttFactory();
            IMqttClient _mqttClient = _mqttFactory.CreateMqttClient();
            var result = await _mqttClient.ConnectAsync(Options, CancellationToken.None);
            var options = _mqttFactory.CreateSubscribeOptionsBuilder().WithTopicFilter("Test").Build();
            try
            {
                var task = await _mqttClient.SubscribeAsync(options, CancellationToken.None); 
            }
            catch (Exception ex)
            {

            }
          
           
        });
        Console.ReadLine();
    }
}

}
The error message is as follows: System.ArgumentOutOfRangeException HResult=0x80131502 Message=索引超出范围。必须为非负值并小于集合大小。 Arg_ParamName_Name Source=mscorlib StackTrace: at System.ThrowHelper.ThrowArgumentOutOfRangeException(ExceptionArgument argument, ExceptionResource resource) at MQTTnet.Client.MqttClientSubscribeResultFactory.CreateSubscribeResultItem(Int32 index, MqttSubscribePacket subscribePacket, MqttSubAckPacket subAckPacket) at MQTTnet.Client.MqttClientSubscribeResultFactory.Create(MqttSubscribePacket subscribePacket, MqttSubAckPacket subAckPacket) at MQTTnet.Client.MqttClient.<SubscribeAsync>d__47.MoveNext() at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) at System.Runtime.CompilerServices.TaskAwaiter1.GetResult()
at ConsoleApp1.Program.<>c.<

b__2_0>d.MoveNext() in D:\Work\project\Tools\ConsoleApp1\ConsoleApp1\Program.cs:line 38

此异常最初是在此调用堆栈中引发的:
System.ThrowHelper.ThrowArgumentOutOfRangeException(System.ExceptionArgument, System.ExceptionResource)
MQTTnet.Client.MqttClientSubscribeResultFactory.CreateSubscribeResultItem(int, MQTTnet.Packets.MqttSubscribePacket, MQTTnet.Packets.MqttSubAckPacket)
MQTTnet.Client.MqttClientSubscribeResultFactory.Create(MQTTnet.Packets.MqttSubscribePacket, MQTTnet.Packets.MqttSubAckPacket)
MQTTnet.Client.MqttClient.SubscribeAsync(MQTTnet.Client.MqttClientSubscribeOptions, System.Threading.CancellationToken)
ConsoleApp1.Program.Main.AnonymousMethod__2_0() (位于 Program.cs 中)

**Thank you for providing assistance**