Micrsoft.UI.Xmal 2.8.6 not able to build for release sideloading (WebView2 WinUI2)

[dworzycp]

Describe the bug

Not able to build a release sideloading app with the latest version of Micrsoft.UI.Xmal (2.8.6).

Debug builds work fine, only seeing issues with release builds

Downgrading Micrsoft.UI.Xmal to 2.8.2 fixes the issue.

Steps to reproduce the bug

1. Set up a new project following https://learn.microsoft.com/en-us/microsoft-edge/webview2/get-started/winui2
2. Add the latest version of Microsoft.UI.Xaml which is 2.8.6
3. Create app package for sideloading > when selecting the packages to create, keep both x86 and x64 ticked, but update the solution configuration from debug to release
4. Errors when building with:

Payload contains two or more files with the same destination path 'System.IO.MemoryMappedFiles.dll', but they have different content. Source files: 
C:\Program Files (x86)\Microsoft SDKs\UWPNuGetPackages\runtime.win10-x86.microsoft.netcore.universalwindowsplatform\6.2.14\runtimes\win10-x86\lib\uap10.0.15138\System.IO.MemoryMappedFiles.dll
C:\Program Files (x86)\Microsoft SDKs\UWPNuGetPackages\runtime.win10-x86-aot.microsoft.netcore.universalwindowsplatform\6.2.14\runtimes\win10-x86-aot\lib\uap10.0.15138\System.IO.MemoryMappedFiles.dll

Note - debug builds work fine

Expected behavior

No response

Screenshots

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NuGet package version

None

Windows version

No response

Additional context

No response