.NET MAUI – Android – NullPointerException – androidx.core.view.ViewCompat$Api29Impl.getAccessibilityDelegate ⇐ C#

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Die Anwendung stürzt nur in Release und fast jedes Mal ab, wenn ich zu der Seite navigiere, auf der eine benutzerdefinierte Ansicht vorhanden ist.
Hier ist der Code für MyLinkView:< /p>

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der Code-Behind:

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        public static readonly BindableProperty TextProperty = BindableProperty.Create(propertyName: nameof(Text),
returnType: typeof(string), declaringType: typeof(MyLinkView), defaultValue: string.Empty, propertyChanged: OnTextPropertyChanged);

public string Text
{
get => (string)GetValue(TextProperty);
set => SetValue(TextProperty, value);
}
public static readonly BindableProperty PressCommandProperty = BindableProperty.Create(
propertyName: nameof(PressCommand), returnType: typeof(IAsyncCommand), declaringType: typeof(MyLinkView), defaultValue: null);

public IAsyncCommand PressCommand
{
get => (IAsyncCommand)GetValue(PressCommandProperty);
set => SetValue(PressCommandProperty, value);
}

private async static void OnTextPropertyChanged(BindableObject bindable, object oldValue, object newValue)
{
try
{
if (!(bindable is MyLinkViewview))
return;

if (newValue is null || newValue is string str &&  string.IsNullOrWhiteSpace(str))
{
view.LabelControl.FormattedText = string.Empty;
}
else if (newValue is string text)
{
var formattedText = new FormattedString();
foreach (var item in MyLinkHelper.ProcessString(text))
{
var span = new Span { Text = item.Text };
var hasLink = !string.IsNullOrEmpty(item.Link);
span.GestureRecognizers.Add(new TapGestureRecognizer
{
Command = view.PressCommand,
CommandParameter = view.PressCommandParameter
});
formattedText.Spans.Add(span);
}

view.LabelControl.FormattedText = formattedText;
}

}
catch (Exception ex)
{

await App.Current.MainPage.DisplayAlert("Alert", ex.Message, "OK");
}

}

Ich verwende DisplayAlert, um die Ausnahme im Release-Modus abzufangen.
Hier sind Berichte von AppCenter:

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androidx.core.view.ViewCompat$Api29Impl.getAccessibilityDelegate
ViewCompat.java, line 5436
Java.Lang.NullPointerException: Attempt to invoke virtual method 'android.view.View$AccessibilityDelegate android.view.View.getAccessibilityDelegate()' on a null object reference

And the Stack Trace is:

Java.Interop.JniEnvironment.StaticMethods.CallStaticObjectMethod(JniObjectReference , JniMethodInfo , JniArgumentValue* )
Java.Interop.JniPeerMembers.JniStaticMethods.InvokeObjectMethod(String , JniArgumentValue* )
AndroidX.Core.View.ViewCompat.GetAccessibilityDelegate(View )
Microsoft.Maui.Controls.Platform.SemanticExtensions.AddOrRemoveControlsAccessibilityDelegate(View virtualView)
Microsoft.Maui.Controls.Platform.GesturePlatformManager.GestureCollectionChanged(Object sender, NotifyCollectionChangedEventArgs e)
System.Collections.ObjectModel.ObservableCollection`1[[Microsoft.Maui.Controls.IGestureRecognizer, Microsoft.Maui.Controls, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null]].OnCollectionChanged(NotifyCollectionChangedEventArgs )
System.Collections.ObjectModel.ObservableCollection`1[[Microsoft.Maui.Controls.IGestureRecognizer, Microsoft.Maui.Controls, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null]].OnCollectionChanged(NotifyCollectionChangedAction , Object , Int32 )
System.Collections.ObjectModel.ObservableCollection`1[[Microsoft.Maui.Controls.IGestureRecognizer, Microsoft.Maui.Controls, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null]].InsertItem(Int32 , IGestureRecognizer )
System.Collections.ObjectModel.Collection`1[[Microsoft.Maui.Controls.IGestureRecognizer, Microsoft.Maui.Controls, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null]].Add(IGestureRecognizer item)
Microsoft.Maui.Controls.Label.SetupSpanGestureRecognizers(IEnumerable gestureRecognizers)
Microsoft.Maui.Controls.Label.SetupSpans(IEnumerable spans)
Microsoft.Maui.Controls.Label.c.b__124_0(BindableObject bindable, Object oldvalue, Object newvalue)
Microsoft.Maui.Controls.BindableObject.SetValueActual(BindableProperty property, BindablePropertyContext context, Object value, Boolean currentlyApplying, SetValueFlags attributes, SetterSpecificity specificity, Boolean silent)
Microsoft.Maui.Controls.BindableObject.SetValueCore(BindableProperty property, Object value, SetValueFlags attributes, SetValuePrivateFlags privateAttributes, SetterSpecificity specificity)
Microsoft.Maui.Controls.BindableObject.SetValue(BindableProperty property, Object value)
Microsoft.Maui.Controls.Label.set_FormattedText(FormattedString value)
MyApp.MyLabelView.OnTextPropertyChanged(BindableObject bindable, Object oldValue, Object newValue)
Microsoft.Maui.Controls.BindableObject.SetValueActual(BindableProperty property, BindablePropertyContext context, Object value, Boolean currentlyApplying, SetValueFlags attributes, SetterSpecificity specificity, Boolean silent)

Ich bin seit ein paar Tagen mit diesem Problem beschäftigt. Wenn ich den Try/Catch-Block hinzufüge, kommt es zu einem Absturz und die App funktioniert weiterhin normal, aber ich möchte herausfinden, wo das Problem liegt. Hatte jemand schon einmal ein ähnliches Problem?
**UPDATE: **
Wenn ich diesen Code kommentiere:

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           //span.GestureRecognizers.Add(new TapGestureRecognizer
//{
//    Command = view.PressCommand,
//    CommandParameter = view.PressCommandParameter
//});

Der Absturz tritt nicht mehr auf, aber ich weiß immer noch nicht, warum und welches Element im nativen Android-Code null ist