This occurs when disposing an HwndSource whose RootVisual is null, a situation that arises in Visual Studio when docking or splitting windows, and could arise in other apps. Improves the reliability of automatic Native Image generation task.ĢCommon Language Runtime (CLR) Known issues in this updateĪfter installing this update, WPF apps may crash with a callstack similar toĮxception Info: System.NullReferenceException at .HasCustomChrome(, RECT ByRef) at .GetEffectiveClientRect(IntPtr)Īt .PossiblyDeactivate(IntPtr, Boolean)Īt .Dispose()

Addresses a hang when scrolling to the end of a TreeView, when layout rounding is enabled and DPI scaling is not 100%. Addresses an issue where after installing the update released on October 20th, some ASP.Net applications fail during precompilation – likely with a message that contains the words “Error ASPCONFIG.” Before you install this update, see the Prerequisite and Restart requirements sections.

We recommend that you apply this update as part of your regular maintenance routines.

The Februupdate for Windows 10, version 2004, Windows Server, version 2004, Windows 10, version 20H2, and Windows Server, version 20H2 includes cumulative reliability improvements in.

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