Shell.NavBarHasShadow not working correctly on Android

[gubhit1s]

Description

Shell.NavBarHasShadow does not show the shadow under title bar on Android when being set on ContentPage. Stranglely when I debug the app and set this to false, then to true, the shadow does display.

Steps to Reproduce

1. Create new .NET MAUI App, version .NET 8, or clone repo here: https://github.com/gubhit1s/MauiApp1

2. In AppShell.xaml, set Shell.FlyoutBehavior="Flyout"

3. In MainPage.xaml, add Shell.NavBarHasShadow="True"

4. Debug the project, the shadow doesn't appear.
   

5. In debug mode, change Shell.NavBarHasShadow="False", the shadow doesn't appear.

6. Also in debug mode, change Shell.NavBarHasShadow="True", the shadow appears.
   

Link to public reproduction project repository

https://github.com/gubhit1s/MauiApp1

Version with bug

8.0.3

Is this a regression from previous behavior?

Not sure, did not test other versions

Last version that worked well

Unknown/Other

Affected platforms

Android

Affected platform versions

Android 14

Did you find any workaround?

Trying to switch to CustomRenderer

Relevant log output

No response

[ghost]

We've added this issue to our backlog, and we will work to address it as time and resources allow. If you have any additional information or questions about this issue, please leave a comment. For additional info about issue management, please read our Triage Process.

[gubhit1s]

Found a workaround for this, in case anyone facing the same issue:
protected override async void OnAppearing( { await Task.Delay(10); Shell.SetNavBarHasShadow(this, false); Shell.SetNavBarHasShadow(this, true); }

[XamlTest]

Verified this on Visual Studio Enterprise 17.9.0 Preview 2(8.0.3 and 7.0.101). Repro on Android 14.0-API34, not repro on iOS 17.0 and MacCatalyst with below Project:
MauiApp1.zip

For Windows 11: The shadow under the title bar is always not displayed.