Crash when using PublishTrimmed with Packaged app and attempting to reference IValueConverters from external library

[kazo0]

Describe the bug

We are trying to use <PublishTrimmed>True</PublishTrimmed> in our application publish profiles but are encountering a crash when using Styles coming from our external Material library of XAML styles.

The error we see in the logs is:

Exception thrown at 0x00007FFB487A535C (KernelBase.dll) in MaterialTestApp.Windows.exe: WinRT originate error - 0x802B000A : 'Failed to assign to property 'Microsoft.UI.Xaml.UIElement.Visibility'. [Line: 0 Position: 0]'.

And it seems to be happening with any style that is using converters defined in our Material library

Visibility="{Binding Path=..., RelativeSource={RelativeSource TemplatedParent}, Converter={StaticResource MaterialNullToCollapsedConverter}, FallbackValue=Collapsed, TargetNullValue=Collapsed}"

It's not only isolated to Visibility, all converters are simply not being applied. And this is crashing only when running as a Packaged app. Running as Unpackaged does not lead to a crash and the converters are working

Removing the PublishTrimmed from the .pubxmls avoids the crash on Packaged apps

Steps to reproduce the bug

CrashingWinSample.zip

1. Launch sample app (Windows - Packaged)
2. Note crash

Expected behavior

No crash

Screenshots

No response

NuGet package version

Windows App SDK 1.4.2: 1.4.231008000

Packaging type

Packaged (MSIX)

Windows version

Windows 11 version 22H2 (22621, 2022 Update)

IDE

Visual Studio 2022-preview, Visual Studio 2022

Additional context

Interestingly, just adding a class that inherits from IValueConverter anywhere in my sample app will workaround the crash. I don't even need to use the converter in the XAML, just having it in the project will avoid the crash

[ghost1372]

@kazo0 test this:
TrimMode=partial