WinUI 3桌面打包应用安装后ListView无法显示项的问题求助

各位好，我现在用Visual Studio在Windows 10（19045版本）上开发WinUI 3桌面应用，选的是“Empty App, packaged with Windows Application Packaging Project (WinUI 3 in Desktop)”模板。在Visual Studio里用Debug模式运行的时候一切正常，但打包手动安装后，ListView就是不显示内容——我已经确认ObservableCollection数据源是正确填充的，点击按钮能看到集合计数是对的，但列表就是空的。

我的MainWindow.xaml代码如下：

<?xml version="1.0" encoding="utf-8"?>
<Window x:Class="App2.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:local="using:App2"
        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
        mc:Ignorable="d"
        Title="App2">
    <StackPanel Orientation="Vertical" HorizontalAlignment="Center" VerticalAlignment="Center">
        <ListView x:Name="WorkList" SelectionMode="Single" ItemsSource="{x:Bind Persone}">
            <ListView.ItemTemplate>
                <DataTemplate x:DataType="local:Persona">
                    <Grid>
                        <Grid.ColumnDefinitions>
                            <ColumnDefinition Width="*"/>
                            <ColumnDefinition Width="*"/>
                        </Grid.ColumnDefinitions>
                        <TextBlock Grid.Column="0" Text="{x:Bind Nome, Mode=OneWay}"/>
                        <TextBlock Grid.Column="1" Text="{x:Bind Cognome, Mode=OneWay}"/>
                    </Grid>
                </DataTemplate>
            </ListView.ItemTemplate>
        </ListView>
        <Button Click="Button_Click"> Bottone a </Button>
        <TextBlock x:Name="TextBlock"/>
    </StackPanel>
</Window>

对应的后台代码MainWindow.xaml.cs：

public sealed partial class MainWindow : Window, INotifyPropertyChanged
{
    private ObservableCollection<Persona> _persone = new();
    public ObservableCollection<Persona> Persone
    {
        get => _persone;
        set
        {
            if (_persone != value)
            {
                _persone = value;
                OnPropertyChanged(nameof(Persone));
            }
        }
    }

    public MainWindow()
    {
        InitializeComponent();
        Persone.Add(new Persona { Nome = "Mario", Cognome = "Rossi" });
        Persone.Add(new Persona { Nome = "Franco", Cognome = "Rossi" });
    }

    private void Button_Click(object sender, RoutedEventArgs e)
    {
        TextBlock.Text = Persone.Count.ToString();
    }

    public event PropertyChangedEventHandler? PropertyChanged;
    private void OnPropertyChanged(string propertyName) => PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(propertyName));
}

public class Persona
{
    public string Nome { get; set; }
    public string Cognome { get; set; }
}

我的Package.appxmanifest中的依赖配置是：

<Dependencies>
  <TargetDeviceFamily Name="Windows.Universal" MinVersion="10.0.17763.0" MaxVersionTested="10.0.19041.0" />
  <TargetDeviceFamily Name="Windows.Desktop" MinVersion="10.0.17763.0" MaxVersionTested="10.0.19041.0" />
</Dependencies>

我已经做了这些排查：

• 确认Persone集合在启动后已经正确填充（通过按钮点击显示的计数验证）
• 排查过x:Bind和DataTemplate的配置，没发现明显错误
• 运行时没有抛出任何异常

有没有人遇到过类似的情况？为什么打包安装后的应用里ListView不显示项，而Debug模式下正常？这会不会是WinUI 3打包应用中绑定或者x:DataType相关的已知问题？

内容来源于stack exchange