Why does using Voice Control when a Xamarin.Forms Picker is open result in the app terminating?

Question

With a Xamarin.Forms Picker open on iOS (so the wheels are usable) when using the Voice Control accessibility option, the app is prone to crashing. A wide variety of spoken words or phrases will result in the app crashing, "Next", "Thank you" (ok, I was saying that to somebody in the room), etc.

Has anybody else experienced this? Any idea how to prevent the crash from happening?

I'm using XF 4.8

Answer 1

where PhoneticAlphabetVM is as follows:

public sealed class PhoneticAlphabetVM
{
    private readonly ObservableCollection<string> _letters = new ObservableCollection<string>
    {
        "alpha",
        "bravo",
        "charlie",
        "delta",
        "echo",
        "foxtrot",
        "golf",
        "hotel",
        "india",
        "juliet",
        "kilo",
        "lima",
        "mike",
        "november",
        "oscar",
        "papa",
        "quebec",
        "romeo",
        "sierra",
        "tango",
        "uniform"
    };

    public void AddItem(string newItem)
    {
        _letters.Add(newItem);
    }

    public void ModifyItem()
    {
        _letters[0] = _letters[0] + "*";
    }

    public IEnumerable ItemsSource => _letters;
}