Wix5 Bundle installer show Blank Help Page

[kumarashokd]

Wix : 5.0.0

Git Repo : https://github.com/kumarashokd/Wix5-Installer/tree/main/wix-bundle-installer

Steps:

1. checkout wix-bundle-installer
2. Run build-bundle.bat (Build demo-bundle and launch Help Page)

Actual :

Expected :

thm.xml file has proper content but its not rendering in the installer UI

    <Page Name="Help">
        <Label X="11" Y="80" Width="-11" Height="30" FontId="2" DisablePrefix="yes">#(loc.HelpHeader)</Label>
        <Label X="11" Y="112" Width="-11" Height="-35" FontId="3" DisablePrefix="yes">#(loc.HelpText)</Label>
        <Button Name="HelpCloseButton" X="-11" Y="-11" Width="75" Height="23" TabStop="yes" FontId="0">
            <Text>#(loc.HelpCloseButton)</Text>
            <CloseWindowAction />
        </Button>
    </Page> 

[cz-dev-ge]

see #8808