In Xamarin Forms, when I put a label inside a grid with many columns, the label takes extra height just as if the text is longer and overflows below on a new line.  

If I put the label inside the stack layout, before or after the grid, it displays correctly, but it doesn't when inside the grid.  

Also, the issue seems bigger if the grid has many columns.

If I delete the scroll view it doesn't fix the issue.  

The issue seems to be related with the Margin of 20 set for the stack layout. Bigger margin makes things worse, however, even if I delete the scroll view and stack layout and I keep just the grid, the issue still appears.

I am using latest Xamarin Forms (5.0.0.2291) and Xamarin Essentials (1.7.0). I tried older versions, e.g. XF 4.7.1239 - issue still appears.

```
<?xml version="1.0" encoding="utf-8" ?>
<ContentPage xmlns="http://xamarin.com/schemas/2014/forms"
             xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
             xmlns:d="http://xamarin.com/schemas/2014/forms/design"
             xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
             mc:Ignorable="d"
             x:Class="App1.MainPage"
             NavigationPage.HasNavigationBar="False"
             xmlns:ios="clr-namespace:Xamarin.Forms.PlatformConfiguration.iOSSpecific;assembly=Xamarin.Forms.Core"
             ios:Page.UseSafeArea="true">
    <ContentPage.Content> <!-- totally not good... -->
        <ScrollView Orientation="Vertical">
            <StackLayout  Orientation="Vertical"
                          Margin="20"
                          HorizontalOptions="FillAndExpand"
                          BackgroundColor="LightGreen">
                <Grid Margin="0" Padding="0" BackgroundColor="LightCyan">
                    <Grid.ColumnDefinitions>
                        <ColumnDefinition Width="1*" />
                        <ColumnDefinition Width="1*" />
                        <ColumnDefinition Width="1*" />
                        <ColumnDefinition Width="1*" />
                        <ColumnDefinition Width="1*" />
                        <ColumnDefinition Width="1*" />
                        <ColumnDefinition Width="1*" />
                        <ColumnDefinition Width="1*" />
                    </Grid.ColumnDefinitions>
                    <Grid.RowDefinitions>
                        <RowDefinition Height="Auto"/>
                    </Grid.RowDefinitions>
                    <Label Text="Contact wire height low and high alert limits
                           contact wire 123456"
                           FontSize="18"
                           Padding="0"
                           Margin="0"
                           HorizontalOptions="FillAndExpand"
                           Grid.Row="0"
                           Grid.Column="0"
                           Grid.ColumnSpan="8"
                           BackgroundColor="LightBlue"/>
                </Grid>
            </StackLayout>
        </ScrollView>
    </ContentPage.Content>
</ContentPage>

```

**UPDATE**

[![explanation in image](https://i.stack.imgur.com/r3Epfl.png)](https://i.stack.imgur.com/r3Epfl.png)
[![explanation in image](https://i.stack.imgur.com/0Uzxbl.png)](https://i.stack.imgur.com/0Uzxbl.png)
[![explanation in image](https://i.stack.imgur.com/sk4KFl.png)](https://i.stack.imgur.com/sk4KFl.png)
[![explanation in image](https://i.stack.imgur.com/GZNgyl.png)](https://i.stack.imgur.com/GZNgyl.png)