Hi,
I'm working on a just for fun project, but ran into an issue.

I'm using the latest version of the ts3 sdk dotnet (c# wrapper) on a x64 Windows System. IDE: Visual Studio 2019

Whenever i try to call a function of the Connection(TeamSpeak.Sdk.Client.Connection) object, i just get the error (Invalid serverConnectionHandlerID). I know this value is taken to adress the right tab of the connection, but i couldn't figure out how to set this value or even how to get the current value. Furthermore i can't find anything about this in the documentation.

I hope someone can help me with this problem.
Thanks in advance.

Code:
public partial class Form1 : Form
    {
        public ts_connection conn = new ts_connection();
        public Connection handler;

private void Button1_Click(object sender, EventArgs e)
        {
            try
            {
                

                handler = conn.make_connection();
                
                handler.Stop(); // <== This triggers the error.
                try
                {


                    this.Close();
                    Thread thread1 = new Thread(start1);
                    thread1.SetApartmentState(ApartmentState.MTA);
                    thread1.Start();

                }
                catch (Exception er22)
                {
                    MessageBox.Show("Connecting to Server failed.\n Exception: " + er22.ToString(), "NTSMS - Connection failure", MessageBoxButtons.OK, MessageBoxIcon.Error);
                }
            }catch(Exception err3)
            {
                MessageBox.Show("Connecting to Server failed.\n Exception: " + err3.ToString(), "NTSMS - Connection failure", MessageBoxButtons.OK, MessageBoxIcon.Error);
            }
             void start1()
            {
                Application.Run(new MainForm(handler));
            }
            

        }
    }
    public class ts_connection
    {
        

        static byte[] WaveHeader = new byte[]
                {
            0x52, 0x49, 0x46, 0x46, 0x00, 0x00, 0x00, 0x00, 0x57, 0x41, 0x56, 0x45, 0x66, 0x6D, 0x74, 0x20,
            0x10, 0x00, 0x00, 0x00, 0x01, 0x00, 0x02, 0x00, 0x80, 0xBB, 0x00, 0x00, 0x00, 0xB8, 0x0B, 0x00,
            0x10, 0x00, 0x10, 0x00, 0x64, 0x61, 0x74, 0x61, 0x00, 0x00, 0x00, 0x00
                };
        static FileStream WaveFile;
        


        public Connection make_connection(string identity = null, string server_ip = "localhost", uint server_port = 9987, string client_name = "test_client", string server_password = "secret")
        {
            using (Connection connection = Library.SpawnNewConnection())
            {
                try
                {
                    
                    connection.StatusChanged += Connection_StatusChanged;
                    connection.NewChannel += Connection_NewChannel;
                    connection.NewChannelCreated += Connection_NewChannelCreated;
                    connection.ChannelDeleted += Connection_ChannelDeleted;
                    connection.ClientMoved += Connection_ClientMoved;
                    connection.ClientMovedSubscription += Connection_SubscriptionClientMoved;
                    connection.ClientTimeout += Connection_ClientTimeout;
                    connection.TalkStatusChanged += Connection_TalkStatusChanged;
                    connection.WhisperIgnored += Connection_WhisperIgnored;
                    connection.ServerError += Connection_ServerError;
                    connection.EditMixedPlaybackVoiceData += Connection_EditMixedPlaybackVoiceData;
                    if (identity == null)
                    {
                        identity = Library.CreateIdentity();
                    }
                    Task task = connection.Start(identity, server_ip, server_port, client_name, serverPassword: server_password);
                    task.Wait();
                    
                    //MessageBox.Show("Connection established!", "NTSMS - Connection Status", MessageBoxButtons.OK, MessageBoxIcon.Information);
                    return connection;
                }
                catch (AggregateException err)
                {
                    if (err.InnerException is TeamSpeakException)
                    {
                        Error errorCode = ((TeamSpeakException)err.InnerException).ErrorCode;
                       // MessageBox.Show(errorCode.ToString(), "Error Exception thrown", MessageBoxButtons.OK, MessageBoxIcon.Error);

                        return null;
                    }
                    else
                    {
                        throw;
                    }
                }
            }
        }
[... just some functions, that are not used yet ...] 
}