GridView control freezes when scrolling until mouse is moved to titlebar buttons to trigger messages in app message queue

[anup-das]

Describe the bug

Previously I reported ListView control freezing with C++/WinRT #7972. This time it's GridView freezing and with Microsoft's own sample code PhotoEditor (C#)

See video attached.

GridView.Freezes.mp4

Steps to reproduce the bug

1. Get latest code from https://github.com/microsoft/WindowsAppSDK-Samples/tree/main/Samples/PhotoEditor/cs-winui
2. Modify sample code to enable reading from Picture's Library in MainPage.xaml.cs
   // Get the Pictures library. (Requires 'Pictures Library' capability.) Windows.Storage.StorageFolder picturesFolder = Windows.Storage.KnownFolders.PicturesLibrary; /* OR Get the Sample pictures. StorageFolder appInstalledFolder = Package.Current.InstalledLocation; StorageFolder picturesFolder = await appInstalledFolder.GetFolderAsync("Assets\\Samples"); */
3. Update all NuGet packages of solution to latest available.
4. Build and run the program with lots of pictures in the Pictures Library

Expected behavior

Controls should not freeze. Microsoft should provide guidelines and code to clearly show how large collection of items can be loaded in controls without the the user interface getting hung. I would not call my collection of pictures library large. My pictures library has just 4,610 files.

Screenshots

No response

NuGet package version

WinUI 3 - Windows App SDK 1.2.2: 1.2.221209.1

Windows version

Windows 11 (22H2): Build 22621

Additional context

No response

[anup-das]

It has been more than 2 months. Is there any workaround for this issue ? It is preventing me from releasing my app (migrated from UWP to Windows App SDK) to the store

[anup-das]

unable to repro with 1.3 stable release