ComboBox items not Display

[qwertyuiopppp]

Describe the bug

---

<Window xmlns="https://github.com/avaloniaui"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:vm="using:AvaloniaApplication1.ViewModels"
        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
        mc:Ignorable="d" d:DesignWidth="800" d:DesignHeight="450"
        x:Class="AvaloniaApplication1.Views.MainWindow"
        x:DataType="vm:MainWindowViewModel"
        Icon="/Assets/avalonia-logo.ico"
        Title="AvaloniaApplication1">

    <Design.DataContext>
        <!-- This only sets the DataContext for the previewer in an IDE,
             to set the actual DataContext for runtime, set the DataContext property in code (look at App.axaml.cs) -->
        <vm:MainWindowViewModel/>
    </Design.DataContext>
<StackPanel>
    <TextBlock Text="{Binding Greeting}" HorizontalAlignment="Center" VerticalAlignment="Center"/>
<ComboBox ItemsSource="{Binding Items}"></ComboBox>
</StackPanel>
</Window>

using System.Collections.ObjectModel;

namespace AvaloniaApplication1.ViewModels;

public partial class MainWindowViewModel : ViewModelBase
{
    public string Greeting { get; } = "Welcome to Avalonia!";

    public ObservableCollection<string> Items { get; set; } = new ObservableCollection<string>(){"1", "2", "3"};
}

iShot_2025-03-26_15.40.06.mp4

To Reproduce

I just remember the last time this happened I had some red bugs in my code. However, the operation is not affected.
I still can't pull down after the error is solved. Last time, I created a new project with the same code and the original project is OK. It pains me to show up again

Expected behavior

There should be a drop-down list when you click but there isn't one

Avalonia version

11.2.1

OS

No response

Additional context

No response

[rabbitism]

Can you upload your app to GitHub repo?

[qwertyuiopppp]

It is normal for me to put the code on another computer. I think it's a rider problem.

[qwertyuiopppp]

I have this problem again. I don't know how to fix it. Just get another computer. The code should be fine

iShot_2025-03-28_17.52.48.mp4

This is a repository for my code https://github.com/qwertyuiopppp/DataTableGrid

[qwertyuiopppp]

I tried to clear rider's cache and restart the computer. It still didn't work. The code will work on another computer

[qwertyuiopppp]

I found that the Combobox items in all my avalonia projects did not show up. I created and ran a new avalonia project using vscode. The Combobox items in all avalonia projects worked fine after the new project Combobox had no problems