Why does this c# code not work now?

I recently upgraded my Flex 6400 to smartsdr 2.6.2 and all is generally well.  All my own client apps seem to work fine.  However, I wanted to do a small auto cq program (a new project) and it's been a while since I have worked with the flexlib code.  So, I am a little rusty.

The code below is borrowed from my own code that still works in several of my own client programs.  But when the code below is compiled it never fires the event - API_RadioAdded(Radio radio) when I have smartsdr running and I start my client.

I am not sure just what is happening since this code has and still is working in my other client apps for my 6400.  Is it safe to assume that the 2.6.2 update has entailed a new way to do this or am I missing something silly that I have forgotten?  Getting old is not fun :-)

So, why does this code below NOT fire the API_RadioAdded event when I start it AND my smartsdr program is already running?  No errors, warnings, or problems with compiling.

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using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;

//GLR0916 added this using statement
using Flex.Smoothlake.FlexLib;
using Flex.UiWpfFramework;
using System.Net.Sockets;
using System.Net;
using System.Threading;
using System.IO;
using System.Globalization;

using System.Media;
//GLR0424
using System.Diagnostics;

namespace AutCQFlex
{
    public partial class MainForm : System.Windows.Forms.Form
    {
        public Radio curRadio = null;


        //GLR707
        //WMPLib.WindowsMediaPlayer Player;
        //public string acqpath = "autocq";
        //public string fqacqpath;
        //public string[] acqFiles;
        //public string[] acqQualifiedFiles;
        //public int acqCBSelectedIndex;
        //public bool justEnded = false;
        //int ecode = 0;
 
        //GLR0430
        //bool startAutoPlayTimer;
        //int autoPlayInterval;
        //int curTickCount;

        public NumberFormatInfo nfi;

        public MainForm()
        {
            InitializeComponent();

            nfi = new CultureInfo("en-US", false).NumberFormat;

            API.RadioAdded += new API.RadioAddedEventHandler(API_RadioAdded);
            API.RadioRemoved += new API.RadioRemovedEventHandler(API_RadioRemoved);

            API.ProgramName = "AutCQFlex";

            API.Init();
        }


        private void MainForm_Load(object sender, EventArgs e)
        {
            CheckForIllegalCrossThreadCalls = false;
        }


        //RADIO-SLICE-PANADAPTER EVENT HANDLERS
        //RADIO-SLICE-PANADAPTER EVENT HANDLERS
        private void API_RadioRemoved(Radio radio)
        {
            //int lp = 0;
        }

        private void API_RadioAdded(Radio radio)
        {
            curRadio = radio;

            if (radio.Connect())
            {
                /*
                radio.SliceAdded += new Radio.SliceAddedEventHandler(radio_SliceAdded);
                radio.SliceRemoved += new Radio.SliceRemovedEventHandler(radio_SliceRemoved);
                radio.PanadapterAdded += new Radio.PanadapterAddedEventHandler(radio_PanadapterAdded);
                radio.PanadapterRemoved += new Radio.PanadapterRemovedEventHandler(radio_PanadapterRemoved);
                radio.PropertyChanged += new PropertyChangedEventHandler(radio_PropertyChanged);
                radio.ForwardPowerDataReady += new Radio.MeterDataReadyEventHandler(radio_ForwardPowerDataReady);
                radio.SWRDataReady += new Radio.MeterDataReadyEventHandler(radio_SWRDataReady);
                radio.PATempDataReady += new Radio.MeterDataReadyEventHandler(radio_PATempDataReady);
                radio.VoltsDataReady += new Radio.MeterDataReadyEventHandler(radio_VoltsDataReady);

                radio.MicDataReady += new Radio.MeterDataReadyEventHandler(radio_MicDataReady);
                radio.MicPeakDataReady += new Radio.MeterDataReadyEventHandler(radio_MicPeakDataReady);

                radio.TxBandSettingsAdded += new Radio.TxBandSettingsAddedEventHandler(radio_TxBandSettingsAdded);
                radio.TxBandSettingsRemoved += new Radio.TxBandSettingsRemovedEventHandler(radio_TxBandSettingsRemoved);
                */
            }

        }
    }
}