As colunas na grade Maui aparecem empilhadas em vez de na mesma linha

Eu manipulo uma grade programaticamente definindo o número de linhas e colunas no código por trás com base no número de linhas em um conjunto de dados. Eu exibo uma imagem, rótulo e um botão na coluna da grade. O conjunto de dados com o qual estou trabalhando tem 2 linhas, então eu crio 1 linha com duas colunas na grade. Eu adiciono os controles dentro de uma VerticalStacklayoutlinha da grade especificando a linha e a coluna. No entanto, a grade é exibida com a coluna empilhada. Tudo o que tentei até agora não teve efeito. Eu também tenho um menu flyout definido na página que funciona perfeitamente. Meu xaml:

<ContentPage xmlns="http://schemas.microsoft.com/dotnet/2021/maui"
             xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
             x:Class="MyApp.DeptUser"
             x:DataType="Line"
             Title="DeptUser">
    <ContentPage.Resources>
        <ResourceDictionary>
            <Style x:Key="IconLabelStyle" TargetType="Label">
                <Setter Property="FontSize" Value="Medium" />
                <Setter Property="WidthRequest" Value="50" />
                <Setter Property="VerticalTextAlignment" Value="Center" />
                <Setter Property="HorizontalTextAlignment" Value="Center" />
                <Setter Property="TextColor" Value="Black" />
                <Setter Property="BackgroundColor" Value="Gold" />
            </Style>
            <Style x:Key="LabelStyle" TargetType="Label">
                <Setter Property="VerticalTextAlignment" Value="Center" />
                <Setter Property="Padding" Value="5,5" />
                <Setter Property="FontSize" Value="Medium" />
                <Setter Property="BackgroundColor" Value="Gold" />
            </Style>
        </ResourceDictionary>
    </ContentPage.Resources>
    <ScrollView>
        <Grid
            RowDefinitions="50,*" >
            <VerticalStackLayout
                Grid.Row = "0"
                BackgroundColor="Gold"
            >
                <Button
                Text="☰"
                FontSize="Medium"
                CornerRadius="0"
                HorizontalOptions="Start"
                WidthRequest="50"
                TextColor="Black"
                BackgroundColor="Gold" 
                Clicked="ShowFlyout"/>
            </VerticalStackLayout>
            <VerticalStackLayout
                Grid.Row="1"
                Padding="5,0"
                Spacing="10">
                <Image
                    Source="banner2.jpg"
                    HeightRequest="75"
                    Aspect="AspectFit"
                    SemanticProperties.Description="Company Personnel"
                />

                <Line Stroke="Black" X2="{Binding Width, Source={RelativeSource Self}}" HorizontalOptions="Fill" StrokeThickness="2" />

                <Label x:Name="lblNumberOfPersonnel"
                    Text="Personnel in your department:"
                    Style="{StaticResource Headline}"
                    TextColor="Blue"
                    HorizontalOptions="Center"
                    HeightRequest="25"
                    FontSize="16"
                    SemanticProperties.HeadingLevel="Level1"/>
                <Grid x:Name="MyCurrentEmployees">
                </Grid>
            </VerticalStackLayout>
            <Border
                x:Name="Overlay"
                IsVisible="false"
                Grid.Row="1"
                BackgroundColor="DarkGray"
                Opacity="0.8">
                <Border.GestureRecognizers>
                    <TapGestureRecognizer Tapped="OnOverlayTap"/>
                </Border.GestureRecognizers>
            </Border>
            <VerticalStackLayout
                x:Name="Flyout"
                WidthRequest="260"
                HorizontalOptions="Start"
                Spacing="2"
                Grid.Row="1"
                BackgroundColor="Gold"
                TranslationX="-250">
                <HorizontalStackLayout HorizontalOptions="Start" HeightRequest="50" >
                    <Image Source="addEmployee.jpg" Style="{StaticResource IconLabelStyle}" />
                    <Label x:Name="AddEmployee" Text="Add Employee" Style="{StaticResource LabelStyle}" />
                    <HorizontalStackLayout.GestureRecognizers>
                        <TapGestureRecognizer Tapped="OnMenuItemTap" CommandParameter="Add Another Participant"/>
                    </HorizontalStackLayout.GestureRecognizers>
                </HorizontalStackLayout>
                <HorizontalStackLayout HorizontalOptions="Start" HeightRequest="50">
                    <Image Source="assign.jpg" Style="{StaticResource IconLabelStyle}" />
                    <Label x:Name="Assign" Text="Assign Employee To Section" Style="{StaticResource LabelStyle}" />
                    <HorizontalStackLayout.GestureRecognizers>
                        <TapGestureRecognizer Tapped="OnMenuItemTap" CommandParameter="Re-Register"/>
                    </HorizontalStackLayout.GestureRecognizers>
                </HorizontalStackLayout>
                <HorizontalStackLayout HorizontalOptions="Start" HeightRequest="50">
                    <Image Source="text.jpg" Style="{StaticResource IconLabelStyle}" />
                    <Label x:Name="sendtext" Text="Send Text" Style="{StaticResource LabelStyle}" />
                    <HorizontalStackLayout.GestureRecognizers>
                        <TapGestureRecognizer Tapped="OnMenuItemTap" CommandParameter="ChatRoom"/>
                    </HorizontalStackLayout.GestureRecognizers>
                </HorizontalStackLayout>
                <HorizontalStackLayout HorizontalOptions="Start" HeightRequest="50">
                    <Image Source="myaccount.jpg" Style="{StaticResource IconLabelStyle}" />
                    <Label x:Name="MyAccount" Text="My Account" Style="{StaticResource LabelStyle}" />
                    <HorizontalStackLayout.GestureRecognizers>
                        <TapGestureRecognizer Tapped="OnMenuItemTap" CommandParameter="My Account"/>
                    </HorizontalStackLayout.GestureRecognizers>
                </HorizontalStackLayout>
                <HorizontalStackLayout HorizontalOptions="Start" HeightRequest="50">
                    <Image Source="myaccount.jpg" Style="{StaticResource IconLabelStyle}" />
                    <Label x:Name="LogOut" Text="Log Off" Style="{StaticResource LabelStyle}" />
                    <HorizontalStackLayout.GestureRecognizers>
                        <TapGestureRecognizer Tapped="OnMenuItemTap" CommandParameter="Log Off"/>
                    </HorizontalStackLayout.GestureRecognizers>
                </HorizontalStackLayout>
            </VerticalStackLayout>
        </Grid>
    </ScrollView>
</ContentPage>

A grade com a qual estou tendo problemas é MyCurrentEmployees. Meu código:

protected override async void OnAppearing()
{
    myCurrentemployees = Utils.ToDataSet(myService.GetEmployeeNames(MyUser.Username, MyUser.Password));
    for (int x = 0; x < myCurrentemployees.Tables[0].Rows.Count/2; x+=2)
    {
        MyCurrentEmployees.RowDefinitions.Add(new RowDefinition());
    }

    ColumnDefinition c1 = new ColumnDefinition();
    c1.Width = new GridLength(50, GridUnitType.Star);
    ColumnDefinition c2 = new ColumnDefinition();
    c2.Width = new GridLength(50, GridUnitType.Star);
    MyCurrentEmployees.ColumnDefinitions.Add(c1);
    MyCurrentEmployees.ColumnDefinitions.Add(c2);

    foreach (DataRow MyDataRow in myCurrentemployees.Tables[0].Rows)
    {
        Image Myimage = new Image();
        Myimage.HeightRequest = 150;
        Myimage.WidthRequest = 150;
        byte[] imageArray = new byte[1];

        MyPhotoDataSet = Utils.ToDataSet(myService1.GetPhoto(MyUser.Username, MyUser.Password, MyDataRow["EmployeeID"].ToString()));
        if (MyPhotoDataSet.Tables[0].Rows[0][0].ToString() != null)
        {
            imageArray = (byte[])MyPhotoDataSet.Tables[0].Rows[0][0];
        }
        else
        {
            MyPhotoDataSet = Utils.ToDataSet(myService.GetDummyPhoto(MyUser.Username, MyUser.Password));
            imageArray = (byte[])MyPhotoDataSet.Tables[0].Rows[0][0];
        }
        MemoryStream memory = new MemoryStream(imageArray);
        Myimage.Source = Microsoft.Maui.Controls.ImageSource.FromStream(() => (Stream)memory);
        Label Mylabel = new Label();
        Mylabel.Text = MyDataRow["Name"].ToString();
        Mylabel.HorizontalTextAlignment = TextAlignment.Center;
        Mylabel.WidthRequest = 150;
        Button MyDeleteButton = new Button();
        MyDeleteButton.Text = "Delete Employee";
        MyDeleteButton.TextColor = Colors.Black;
        MyDeleteButton.FontAttributes = FontAttributes.Bold;
        MyDeleteButton.BackgroundColor = Colors.Gold;
        MyDeleteButton.WidthRequest = 150;
        VerticalStackLayout MyLayOut = new VerticalStackLayout();
        MyLayOut.Children.Add(Myimage);
        MyLayOut.Children.Add(Mylabel);
        MyLayOut.Children.Add(MyDeleteButton);
        MyCurrentParticipants.Add(MyLayOut, RowNumber, ColumnNumber);
        if (ColumnNumber == 1)
        {
            ColumnNumber = 0;
            RowNumber++;
        } else
        {
            ColumnNumber++;
        }
    }
}

Captura de tela:

O que estou fazendo errado?