There is a small black dot when FlyleafHost is initialized With Collapsed

[Lizhengbo0304]

When FlyleafHost is initialized, set Visibility = "Collapsed", and a small black dot will be displayed on the interface. If it is set to Visible and then set to Collapsed again, the interface returns to normal, and the black dot disappears.

<Window
    Height="450"
    Title="MainWindow"
    Width="800"
    mc:Ignorable="d"
    x:Class="FlyleafTest.MainWindow"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
    xmlns:wpf="clr-namespace:FlyleafLib.Controls.WPF;assembly=FlyleafLib"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">
    <Grid>
        <Grid.RowDefinitions>
            <RowDefinition Height="Auto" />
            <RowDefinition />
        </Grid.RowDefinitions>
        <Button
            Click="ButtonBase_OnClick"
            Content="1111"
            Grid.Row="0" />
        <wpf:FlyleafHost
            Grid.Row="1"
            KeyBindings="Both"
            Player="{Binding Player}"
            Visibility="Collapsed"
            x:Name="FlyleafHost" />
    </Grid>
</Window>

    private void ButtonBase_OnClick(object sender, RoutedEventArgs e)
    {
        FlyleafHost.Visibility = FlyleafHost.Visibility == Visibility.Visible ? Visibility.Collapsed : Visibility.Visible;
    }

initialized With Collapsed:

Visible:

Collapsed: