SwipeItem и TapGestureRecognizer не вызывают команду

Я добавил команды в StackLayout в CollectionView, но команды не вызываются. Что не так? Я использовал это обучающее видео, чтобы узнать, как связать команду в CollectionView следующим образом:

<SwipeView.RightItems>
     <SwipeItems>
         <SwipeItem Text = "Delete" Command = "{Binding Source = {RelativeSource AncestorType = {x:Type local:ProductPageViewModel}}, Path = "ProductTappedDeleteCommand"}", CommandParameter = "{Binding .}">
          </SwipeItem>
     </SwipeItems>
</SwipeView.RightItems>

На видео этот код работает правильно. Я пробовал так - SwipeItem и TapGestureRecognizer не вызывают команду. Уже 2 дня пытаюсь исправить эту ошибку, не получается.

XAML:

<?xml version = "1.0" encoding = "utf-8" ?>
<ContentPage xmlns = "http://schemas.microsoft.com/dotnet/2021/maui"
             xmlns:x = "http://schemas.microsoft.com/winfx/2009/xaml"
             x:Class = "ColorLab.Pages.UserDiagnosticPage"
             xmlns:models = "clr-namespace:ColorLab.Types"
             xmlns:local = "clr-namespace:ColorLab.ViewModels"
             Title = "UserDiagnosticPage">
    <StackLayout>
        <RefreshView x:DataType = "local:UserDiagnosticViewModel"
                     Command = "{Binding LoadDiagnosticCommand}"
                     IsRefreshing = "{Binding IsBusy}">
            <Grid>
                <CollectionView ItemsSource = "{Binding combinedUdDatas}">
                    <CollectionView.EmptyView>
                    ...
                    </CollectionView.EmptyView>

                    <CollectionView.ItemTemplate>
                        <DataTemplate x:DataType = "models:CombinedUdData">
                            <StackLayout Padding = "2">
                                <SwipeView>
                                    <SwipeView.RightItems>
                                        <SwipeItem Text = "Delete" Command = "{Binding Source = {RelativeSource AncestorType = {x:Type local:UserDiagnosticViewModel}}, Path=UdTappedDeleteCommand}" CommandParameter = "{Binding .}" BackgroundColor = "{StaticResource DangerButton}"/>
                                        <SwipeItem Text = "Cancel" IsDestructive = "True" BackgroundColor = "{StaticResource Primary}"/>
                                    </SwipeView.RightItems>

                                    <Grid Padding = "10" BackgroundColor = "AliceBlue">
                                        <Grid.RowDefinitions>
                                            <RowDefinition Height = "30"/>
                                        </Grid.RowDefinitions>
                                        <Grid.ColumnDefinitions>
                                            <ColumnDefinition Width = "215" />
                                            <ColumnDefinition Width = "45" />
                                            <ColumnDefinition Width = "35" />
                                            <ColumnDefinition Width = "70" />
                                        </Grid.ColumnDefinitions>
                                        <Label Grid.Column = "0" Text = "{Binding UserDiagnostic.SessionDate}" FontSize = "18" VerticalTextAlignment = "Center" HorizontalTextAlignment = "Start"/>
                                        <Label Grid.Column = "1" Text = "Цвет:" FontSize = "16" VerticalTextAlignment = "Center" HorizontalTextAlignment = "Start"/>
                                        <BoxView Grid.Column = "2" Color = "{Binding UdMauiColor[0].OriginalColor}"/>
                                        <Image Source = "open_object.png" Grid.Column = "3" WidthRequest = "30" HeightRequest = "30">
                                            <Image.GestureRecognizers>
                                                <TapGestureRecognizer NumberOfTapsRequired = "1" Command = "{Binding Source = {RelativeSource AncestorType = {x:Type local:UserDiagnosticViewModel}}, Path=UdDiagnosticTappedCommand}"
                                                                      CommandParameter = "{Binding .}">
                                                </TapGestureRecognizer>
                                            </Image.GestureRecognizers>
                                        </Image>
                                    </Grid>
                                </SwipeView>
                            </StackLayout>
                        </DataTemplate>
                    </CollectionView.ItemTemplate>
                </CollectionView>
            </Grid>
        </RefreshView>
    </StackLayout>
</ContentPage>

.cs файл для этой страницы:

using ColorLab.ViewModels;

namespace ColorLab.Pages;

public partial class UserDiagnosticPage : ContentPage
{
    UserDiagnosticViewModel _userDiagnosticViewModel;

    public UserDiagnosticPage()
    {
        InitializeComponent();
        _userDiagnosticViewModel = new(Navigation);
        this.BindingContext = _userDiagnosticViewModel;
    }

    protected override void OnAppearing()
    {
        base.OnAppearing();
        _userDiagnosticViewModel.OnAppering();
    }
}

В UserDiagnosticViewModel я пробовал разные способы привязки команд:

using System.Collections.ObjectModel;
using System.Windows.Input;
using Microsoft.Toolkit.Mvvm.ComponentModel;
using Microsoft.Toolkit.Mvvm.Input;
using ColorLab.Types;
using ColorLab.Pages;

namespace ColorLab.ViewModels
{
    public partial class UserDiagnosticViewModel : BaseUdViewModel
    {

        public ObservableCollection<Types.CombinedUdData> combinedUdDatas { get; }

        public ICommand UdTappedDeleteCommand { get; }

        public UserDiagnosticViewModel(INavigation navigation)
        {
            combinedUdDatas = new();
            Navigation = navigation;
            UdTappedDeleteCommand = new RelayCommand<Types.CombinedUdData>(UdTappedDelete);
        }

        public void OnAppering()
        {
            IsBusy = true;
        }

        [ICommand]
        private async Task LoadDiagnostic()
        {
            IsBusy = true;
            try
            {
                //...
            }
            catch (Exception)
            {
                throw;
            }
            finally
            {
                IsBusy = false;
            }
        }

        private async void UdTappedDelete(Types.CombinedUdData data)
        {
            if (data == null)
                return;
            await App.DiagnosticHistoryService.RemoveUserDiagnosticAsync(data.UserDiagnostic.Id);
            await LoadDiagnostic();
            OnAppering();
        }

        private async void UdDiagnosticTapped(Types.CombinedUdData data)
        {
            if (data == null)
                return;
            await Navigation.PushAsync(new ViewDiagnosticPage(data));
        }
    }
}