Thanks for the report. Can you create a repro sample so we're sure that we're looking at the same issue ?

Here is a sample. It works fine on iOS and Windows but not on Android.

UnoCustomFontIssuesRepro.zip

Thanks for the repro. I was not able to reproduce the issue visually, the content is appearing properly. Which device are you using to run this repro ?

This issue has been automatically closed because there has been no response to our request for more information from the original author. With only the information that is currently in the issue, we don't have enough information to take action. We don't monitor discussions on closed issues thus please open a new GitHub issue if you need the team to revisit this matter.

@jeromelaban Sorry, I didn't know there were comments. I'm having a problem with the Android emulator (Pixel5 - API 30 Android 11.0-API30) and the Samsung Galaxy M12.

Thanks for the update.

I'm hitting the same issue, and it looks like the custom font I'm using exacerbates it even more because text ends up rendered way below.

Repro code:

<Page
    x:Class="UnoTest.MainPage"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">

    <StackPanel VerticalAlignment="Top" Orientation="Horizontal" Margin="20">
        <Border BorderThickness="1" BorderBrush="Green">
            <TextBlock Text="Default Font" FontSize="30" />
        </Border>
        <Border BorderThickness="1" BorderBrush="Red">
            <TextBlock FontFamily="ms-appx:///Assets/Assets/BravuraText.otf#Bravura Text" Text="Bravura Font" FontSize="30" />
        </Border>
    </StackPanel>
</Page>

BravuraText.odf can be downloaded here: https://github.com/steinbergmedia/bravura/blob/master/redist/otf/BravuraText.otf

Windows (correct):

Android (incorrect text metrics which adds space above and below):

Hacky workaround: use Android-specific negative vertical margins on the TextBlock, ie android:Margin="0 -50" (I found the value -50 by trial and error) :

GitHub

bravura/BravuraText.otf at master · steinbergmedia/bravura

Bravura music font, reference font for SMuFL (Standard Music Font Layout) - bravura/BravuraText.otf at master · steinbergmedia/bravura

same issue here.

see Android-IncludeFontPadding

This makes text based UI Layout different on iOS and Android, and it makes UI bug frequently.
How is this issue going??

@ramezgerges can you please check the repro to see what could be the cause?