Rare behavior of the stack layout

Hi, i'm using SfDataform plugin, from h ttps /www.syncfusion.co m .
when I launch the application, the layout gives error, but when I upload an image, it is fixed, could anyone know what is happening?

Video Error: http s://youtu.be/ gXgzqnWh39A (i can't post links, so please, put together) hoping this video helps to clear up the problem

Code:

<ContentPage.BindingContext>
    <local:CrearEventoVM/>

</ContentPage.BindingContext>

<ContentPage.Resources>
    <local1:GooglePlaceVM x:Key="googleplace"/>

    <ResourceDictionary>
        <DataTemplate x:Key="itemTemplate">
            <StackLayout Orientation="Horizontal">

                <Label Text="{Binding Address}" TextColor="Black" LineBreakMode="TailTruncation"/>
            </StackLayout>
        </DataTemplate>
    </ResourceDictionary>
</ContentPage.Resources>


<ContentPage.Content>


    <ScrollView>
        <StackLayout>



            <Grid IsVisible="{Binding ImageVisible}">
                <Grid.RowDefinitions>
                    <RowDefinition Height="100" />

                </Grid.RowDefinitions>
                <Grid.ColumnDefinitions>
                    <ColumnDefinition Width="8*" />
                    <ColumnDefinition Width="*" />
                </Grid.ColumnDefinitions>

                <Image   
                         Grid.Row="0"  Grid.Column="0"  Grid.ColumnSpan="2"
                        VerticalOptions="Fill" 
                        x:Name="image" 
                     Aspect="AspectFill"
                        BackgroundColor="Gray" IsVisible="{Binding ImageVisible}">
                    <Image.GestureRecognizers>
                        <TapGestureRecognizer Tapped="Button_TouchImage" Command="{Binding TouchImageCommand, Mode=TwoWay}">

                        </TapGestureRecognizer>
                    </Image.GestureRecognizers>
                </Image>

                <Label 
                             Grid.Row="0" Grid.Column="1"
                               TextColor="Black" 
                               Text="X" 
                               FontSize="30"   
                               HorizontalTextAlignment="Center" HorizontalOptions="End"
                           IsVisible="{Binding DeleteImageVisible, Mode=TwoWay}">
                    <Label.GestureRecognizers>
                        <TapGestureRecognizer   Tapped="Button_DeleteImage" Command="{Binding DeleteImageCommand}">

                        </TapGestureRecognizer>
                    </Label.GestureRecognizers>
                </Label>

            </Grid>

            <BoxView Color="Gray" Grid.Row="0"  VerticalOptions="Fill" IsVisible="{Binding BoxViewVisible, Mode=TwoWay}">
                        <BoxView.GestureRecognizers>
                            <TapGestureRecognizer Tapped="Button_TouchImage" Command="{Binding TouchImageCommand}">

                            </TapGestureRecognizer>
                        </BoxView.GestureRecognizers>
                    </BoxView>


            <Entry x:Name="asd" ></Entry>
            <autocomplete:SfAutoComplete VerticalOptions="Fill" x:Name="autoComplete" 
                                      BindingContext="{Binding Source={StaticResource googleplace}}"
                                     DropDownItemHeight="35" 
                                     HeightRequest="50" 
                                     LoadMoreText="Ver Más."
                                     MaximumSuggestion="4" 

                                     HighlightedTextColor="Red"
                                     ClearButtonColor="Red"

                                      DisplayMemberPath="Address"
                                     ImageMemberPath="ImageIcon"

                                   SuggestionBoxPlacement="Bottom"

                                ItemTemplate="{StaticResource itemTemplate}" 
                                    SelectionChanged="Selection_Changed"
                                MultiSelectMode="Token"
                                FocusChanged="AutoComplete_FocusChanged"
                                 SuggestionMode="Custom"
                                     ValueChanged="AutoComplete_TextChanged"

                                    Watermark="Busque por curso, grupo o persona."
                                     NoResultsFoundText="Sin Resultados"
                                    Text="{Binding AddressText}" 
                                      DataSource="{Binding Addresses, Mode=TwoWay}">



            </autocomplete:SfAutoComplete>





            <dataForm:SfDataForm x:Name="dataForm" LabelPosition="Top"
                     DataObject="{Binding ContactsInfo}" VerticalOptions="FillAndExpand"/>





            <Button  VerticalOptions="End" Clicked="Button_Guardar_Todo" Text="Guardar"/>




        </StackLayout>
    </ScrollView>
</ContentPage.Content>

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Sorry for my bad english