PushButton Missing First Event

I’m going throug some example projects for Arduinos and at the same time am doing them on my Meadow F7 Micro v1.d
I’m trying to use a simple push button to toggle a LED and seem to be missing the first event after starting up. My code and wiring is attached.

using System;
using System.Threading;
using Meadow;
using Meadow.Devices;
using Meadow.Foundation;
using Meadow.Foundation.Leds;
using Meadow.Foundation.Sensors.Buttons;
using Mono.CodeGeneration;

namespace debounce
    public class MeadowApp : App<F7Micro, MeadowApp>
        Led led;
        PushButton button; 

        /// <summary>
        /// constructor
        /// </summary>
        public MeadowApp()

        /// <summary>
        /// initialize hardware
        /// </summary>
        void Initialize()
            Console.WriteLine("Initialize hardware start...");
            led = new Led(Device.CreateDigitalOutputPort(Device.Pins.D09));
            led.IsOn = false;
            button = new PushButton(Device, Device.Pins.D02,Meadow.Hardware.ResistorMode.Disabled,5);  // debounce for 5ms
            //button = new PushButton(Device.CreateDigitalInputPort(Device.Pins.D02),Meadow.Hardware.ResistorMode.Disabled,5);  // debounce for 5ms
            button.Clicked += ButtonClicked;
            Console.WriteLine("Initialize hardware end...");

        /// <summary>
        /// toggle the state of the LED
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        void ButtonClicked(object sender, EventArgs e)
            Console.WriteLine("Toggling LED from " + led.IsOn + " to " + !led.IsOn);
            led.IsOn = !led.IsOn;

Do I have a wiring or logic issue?

There is a reported issue where the first interrupt can take a while to be generated see issue #74.

Are you seeing this delay rather than the issue going missing ?