White screen on Win10 + .NET Framework 4.8.0/4.7.2

Describe the bug

A brand new project using .NET Framework 4.8.0 (or 4.7.2) shows a blank screen if <ui:ControlsDictionary /> is present.

To Reproduce

Create a brand new WPF project, set the target to .NET Framework 4.8.0, and install WPF-UI.

Define the application resources as:

    <Application.Resources>
        <ResourceDictionary>
            <ResourceDictionary.MergedDictionaries>
                <ui:ThemesDictionary Theme="Dark" />
                <ui:ControlsDictionary />
            </ResourceDictionary.MergedDictionaries>
        </ResourceDictionary>
    </Application.Resources>

Define the root element on MainWindow.xaml as:

    <StackPanel>
        <Button Content="DEF"></Button>
        <ui:Button Content="ABC"></ui:Button>
    </StackPanel>

Run the project. It'll display a white screen:

If I remove the <ui:ControlsDictionary /> line from App.xaml, it shows both buttons, although without any style:

Expected behavior

It should display both buttons as expected, with the ui:Button one styled.

Screenshots

No response

OS version

Windows 10

.NET version

4.8.0 and 4.7.2

WPF-UI NuGet version

2.1.0

Additional context

No response

Start with the App.xaml resource declarations and MainWindow.xaml reproduction described in the issue, then run the minimal project against .NET Framework 4.8.0 and 4.7.2 with WPF-UI 2.1.0. Investigate how ui:ControlsDictionary affects resource loading; done means both buttons render on Windows 10 and the ui:Button remains styled when that dictionary is present.