WebView2 does not render any URLs on ARM64 (Release)

[qerdinger]

Describe the bug

Hi,

When I build my WinUI 3 application targeting arm64 using the win-arm64 build profile in Release mode, the WebView2 control does not render any content (no URLs are displayed).

Settings / Versions being used:

• TargetFramework : net9.0-windows10.0.26100.0
• WindowsAppSDK : 10.0.26100.57
• WinUI3 : 1.6.250228001

However, the same application works as expected on other architectures such as both win-x64 and win-x86 (Debug & Release) and win-arm64 (only on Debug mode).

Why is this important?

WebView2 only works on :

• win-x64 (Debug / Release)
• win-x86 (Debug / Release)
• win-arm64 (Only Debug)

Steps to reproduce the bug

WebView2 chatWebView = new WebView2
{
    Source = new Uri("URL_TO_BE_RENDERED"),
    HorizontalAlignment = HorizontalAlignment.Stretch,
    VerticalAlignment = VerticalAlignment.Stretch
};

Actual behavior

No response

Expected behavior

No response

Screenshots

No response

NuGet package version

• TargetFramework : net9.0-windows10.0.26100.0
• WindowsAppSDK : 10.0.26100.57
• WinUI3 : 1.6.250228001

Windows version

Windows 11 (24H2): Build 26100

Additional context

No response

[snigdha011997]

Hi @qerdinger , can you please try with latest version of WinAppSDK (1.8) in the app, and check if it still repro?

[AjitSurana]

https://learn.microsoft.com/en-us/windows/apps/windows-app-sdk/stable-channel

[qerdinger]

Hi, Sure I will give it a try, the migration to version 1.8 might fix this issue.
Thanks