[Android]: AddShape throws exception Declined - Duplicate

public class SfImageEditorPage : ContentPage
{
        Syncfusion.SfImageEditor.XForms.SfImageEditor editor;

        public SfImageEditorPage(ImageSource imagesource)
	{
            editor = new Syncfusion.SfImageEditor.XForms.SfImageEditor();
  	    editor.Source = imagesource;
            editor.RotatableElements = ImageEditorElements.Text;           
	    Content = editor;
	}

        protected override void OnAppearing()
        {
            base.OnAppearing();
            editor.AddShape(ShapeType.Path);            
        }
    }