TitleBar Icon is missing

Describe the bug

For me the Icon of the TitleBar is not shown when running the latest MVVM sample project.

I had to adjust the code from this:

<ui:TitleBar
            Title="{Binding ViewModel.ApplicationTitle, Mode=OneWay}"
            Grid.Row="0"
            Icon="pack://application:,,,/Assets/applicationIcon-256.png" />

To this:

<ui:TitleBar
            Title="{Binding ViewModel.ApplicationTitle, Mode=OneWay}"
            Grid.Row="0">
            <ui:TitleBar.Icon>
                <ui:ImageIcon>
                    <ui:ImageIcon.Source>
                        <BitmapImage UriSource="pack://application:,,,/Assets/applicationIcon-256.png" />
                    </ui:ImageIcon.Source>
                </ui:ImageIcon>
            </ui:TitleBar.Icon>
        </ui:TitleBar>

To make it work.

Does the samples need to be adjusted or am I doing something wrong?

Thanks in advance!

Regards,
Manuel

To Reproduce

Build and run the latest MVVM sample project.

Expected behavior

The window of the MVVM sample project displays the application icon in the title bar.

Screenshots

No response

OS version

Windows 10

.NET version

net8.0-windows

WPF-UI NuGet version

4.0.0

Additional context

No response

Build and run the latest MVVM sample project on Windows, then inspect the sample's TitleBar declaration and the TitleBar icon handling. Compare the direct Icon markup with the nested ImageIcon form shown in the report. Done means the MVVM sample displays its application icon in the title bar without requiring the workaround.