System.Runtime.InteropServices.COMException thrown when setting Shadow via data binding on Windows

[nivetha-nagalingam]

Description

When using data binding to set the Shadow property on a GraphicsView control in .NET MAUI 9 applications running on Windows (WinUI), a System.Runtime.InteropServices.COMException is thrown. This occurs particularly when using MVVM pattern with INotifyPropertyChanged.

Steps to Reproduce

• Launch the application on Windows. GraphicsViewShadowIssue.zip
• Trigger shadow property updates through UI interaction (e.g., input fields, buttons).
• Observe the exception

Expected Behavior:

• Shadow properties should update smoothly via data binding without exceptions
• GraphicsView should reflect shadow changes immediately

Actual Behavior:

• System.Runtime.InteropServices.COMException is thrown.

Link to public reproduction project repository

No response

Version with bug

9.0.90 SR9

Is this a regression from previous behavior?

Not sure, did not test other versions

Last version that worked well

Unknown/Other

Affected platforms

Windows

Affected platform versions

No response

Did you find any workaround?

No response

Relevant log output

[anandhan-rajagopal]

This issue has been verified in Visual Studio 17.14.9 Preview 1.0 with MAUI versions (9.0.0 & 9.0.90). It can be reproduced on Windows platform.