How to use Font Awesome 5 Duotone Xamarin Forms

I'm trying to apply Font Awesome 5 Duotone font family to my Xamarin Forms app but when launching it, icon is not displaying as it should...

<OnPlatform x:Key="FontAwesomeFontFamily" x:TypeArguments="x:String">
    <On Platform="Android" Value="fa-light-300.ttf#Font Awesome 5 Pro" />
    <On Platform="iOS" Value="Font Awesome 5 Pro" />
    <On Platform="UWP" Value="/Assets/Fonts/fa-light-300.ttf#Font Awesome 5 Pro" />
</OnPlatform>

<OnPlatform x:Key="FontAwesomeDuotoneFontFamily" x:TypeArguments="x:String">
    <On Platform="Android" Value="fa-duotone-900.ttf#Font Awesome 5 Duotone" />
    <On Platform="iOS" Value="Font Awesome 5 Pro Duotone Solid" />
    <On Platform="UWP" Value="/Assets/Fonts/fa-duotone-900.ttf#Font Awesome 5 Duotone" />
</OnPlatform>

In the code, FontAwesome Light works as expected. Am I doing anything wrong?