WPF Custom control not rendering in Passolo 2022 Demo version

Hi All,

The sample application created  with a custom control are not rendering in Passolo.

<RepeatButton Content="Up" Foreground="Blue" Margin="2,5,5,0" Name="UpButton" Grid.Column="1" Grid.Row="0">
<RepeatButton.Template>
<ControlTemplate TargetType="{x:Type RepeatButton}">
<Grid Background="Red">
<Image x:Uid="images123" Source="/Resources/Images/MorningDew/Sample-png.png" Height="41" Width="60" />
<ContentPresenter x:Name="contentPresenter" HorizontalAlignment="Center" VerticalAlignment="Center" />
</Grid>
</ControlTemplate>
</RepeatButton.Template>
</RepeatButton>

seeking help, please advise me.