Не выводятся рабочие группы

using System;
using System.Collections.Generic;
using System.Runtime.InteropServices;
using CSDN;

namespace TCSApi
{
    class Program
    {
        public static void Main(string[] args)
        {

            CSDN.TCS fTCS = new CSDN.TCS();
            CSDN.Tcs_Application TCSApp = (CSDN.Tcs_Application) fTCS.Login();

            CSDN.IOcs_Application2 app2 = (IOcs_Application2) TCSApp;


            WorkGroups Wrkgr = app2.WorkGroups;


            Wrkgr.First();


            var i = 0;

            while (!Wrkgr.Eof)
            {

                i++;

                Console.WriteLine(i);
                
                var name = Wrkgr.Properties["NAME"];


                if (name.Value != DBNull.Value)
                    Console.WriteLine("NAME: " + name.AsString);
                
                
                var note = Wrkgr.Properties["NOTE"];
                
                if (note.Value != DBNull.Value)
                    Console.WriteLine("NOTE: " + note.AsString);

                Console.WriteLine("------------------------");


                Wrkgr.Next();
            }
            
            
            
        }
    }
}