How do I get taps on a view while it's animating?

Hi all. First of all, let me tell you I'm pretty new both with Xamarin and C#, so I may perfectly be asking something either trivial or that just can't be done. The thing is... I have a BoxView in a page and I add a TapGestureRecognizer to it. It works perfectly. But then I decide to animate the BoxView so it scales to 0.7 and back to 1.0 and again to 0.7 and... same thing forever. It animates correctly, yes, but then I start losing a lot of taps on it. Let's please consider this code:

public class App : Application
{
    BoxView box;
    int times;

    public App()
    {
        box = new BoxView
        {
            BackgroundColor = Color.Pink,
            HorizontalOptions = LayoutOptions.Center,
            VerticalOptions = LayoutOptions.Center,
            HeightRequest = 100,
            WidthRequest = 100
        };

        MainPage = new ContentPage
        {
            Content = box
        };

        //AnimateBox();

        var tgr = new TapGestureRecognizer();
        tgr.Tapped += BoxViewTapped;
        box.GestureRecognizers.Add(tgr);
    }

    async void AnimateBox()
    {
        while (true) { 
            await box.ScaleTo(0.7, 200, Easing.SinInOut);
            await box.ScaleTo(1.0, 200, Easing.SinInOut);
        }
    }

    void BoxViewTapped(object sender, EventArgs e)
    {
        System.Diagnostics.Debug.WriteLine("times tapped: " + ++times);
    }

}

With the AnimateBox(); commented out, if I tap on the BoxView 20 times, I got 20 messages in my output console. As expected. With the animation code working, I lose half of the taps or so.

Does anyone know why exactly this happens and how to fix it?

Thank you very much for your time.