It looks like mvx:Bi.nd in combination with InvertedVisibility is broken in 9.2

[Joost-Jens-Luminis]

🔙 Regression

Old (and correct) behavior

We have an border that we want to show when a boolean value is false.
Before we used mvx:Bi.nd="Visibility InvertedVisibility(ScrollDownHintVisible)" (form mvvmcross.plugin.visibility) on the element like so:
<Border mvx:Bi.nd="Visibility InvertedVisibility(ScrollDownHintVisible)" Grid.Row="0" HorizontalAlignment="Right" VerticalAlignment="Bottom" Width="44" Height="44" Margin="24,0" CornerRadius="5, 5, 0, 0" Background="{StaticResource IndustrialLiquidBlue}"> <FontIcon x:Name="Chevron" Foreground="White" Glyph="&#xe92e;"/> </Border>

However, while the ScrollDownHintVisible property is false, the border (with fonticon in it) is expected to be visible.

Current behavior

However, currently this border is actually not visible until ScrollDownHintVisible becomes true.
If however we use the following instead it does work as expected:
Visibility="{Binding ScrollDownHintVisible, Converter={StaticResource InvertedVisibilityConverter}}"

It does work. (this uses a local version of the InvertedVisibilityConverter which is setup as follows:
public class InvertedVisibilityConverter : MvxNativeValueConverter<MvxInvertedVisibilityValueConverter> { }

Reproduction steps

Have a border with mvx:Bi.nd on the visibility and the invertedVisibilityConverter

Further details

The InvertedVisibilityConverter has been added in the Setup as follows:
protected override void FillValueConverters(IMvxValueConverterRegistry registry) { base.FillValueConverters(registry); registry.AddOrOverwriteFrom(typeof(MvxInvertedVisibilityValueConverter).Assembly); }

This doesn't seem to have any effect though.

Configuration

Version:
MvvmCross 9.2.0-beta.3
MvvmCross.Plugin.Visibility 9.2.0-beta.3

Platform:

• WinUI
• .Net 8.0 RC2

[Cheesebaron]

Does it work if you override LoadPlugins like so:

    public override void LoadPlugins(IMvxPluginManager pluginManager)
    {
        base.LoadPlugins(pluginManager);
        pluginManager.EnsurePluginLoaded<MvvmCross.Plugin.Visibility.Platforms.Android.Plugin>();
    }

[Joost-Jens-Luminis]

We already have that in place (the WinUI version of course):

        public override void LoadPlugins(IMvxPluginManager pluginManager)
        {
            pluginManager.EnsurePluginLoaded<MvvmCross.Plugin.Messenger.Plugin>();
            pluginManager.EnsurePluginLoaded<MvvmCross.Plugin.Visibility.Platforms.WinUi.Plugin>();
            pluginManager.EnsurePluginLoaded<MvvmCross.Plugin.Color.Platforms.WinUi.Plugin>();
            base.LoadPlugins(pluginManager);
        }

Edit: Formatting and language :)

[Joost-Jens-Luminis]

This works again in the latest beta. Closing this ticket now.