[Bug] iOS layout crash

[davidortinau]

Description

This layout throws an error:

<?xml version="1.0" encoding="UTF-8"?>
<ContentPage xmlns="http://xamarin.com/schemas/2014/forms" 
xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml" 
x:Class="LayoutLab.BusinessTumblePage" 
BackgroundColor="Maroon" 
Title="StackLayout">
	<ContentPage.Content>
    <ScrollView>
      <StackLayout Spacing="0" Padding="0" BackgroundColor="Maroon">
        <BoxView HorizontalOptions="FillAndExpand" HeightRequest="100" VerticalOptions="Start" Color="Gray" />
        <Button CornerRadius="30"
                TranslationY="-30"
                HeightRequest="60" WidthRequest="60" BackgroundColor="Orange" HorizontalOptions="Center" VerticalOptions="Start" />
        <StackLayout HeightRequest="100" VerticalOptions="Start" HorizontalOptions="FillAndExpand" Spacing="20" BackgroundColor="Maroon">
          <Label Text="User Name" FontSize="28" HorizontalOptions="Center" VerticalOptions="Center" FontAttributes="Bold" />
          <Entry Text="Bio + Hashtags" TextColor="White" BackgroundColor="Maroon" HorizontalOptions="FillAndExpand" VerticalOptions="CenterAndExpand" />
        </StackLayout>
        <StackLayout Orientation="Horizontal" HeightRequest="50" BackgroundColor="White" Padding="5">
          <StackLayout Spacing="0" BackgroundColor="White" Orientation="Horizontal" HorizontalOptions="Start">
            <BoxView BackgroundColor="Black" WidthRequest="40" HeightRequest="40"  HorizontalOptions="StartAndExpand" VerticalOptions="Center" />
            <Label FontSize="14" TextColor="Black" Text="Accent Color" HorizontalOptions="StartAndExpand" VerticalOptions="Center" />
          </StackLayout>
          <StackLayout Spacing="0" BackgroundColor="White" Orientation="Horizontal" HorizontalOptions="EndAndExpand">
            <BoxView BackgroundColor="Maroon" WidthRequest="40" HeightRequest="40" HorizontalOptions="Start" VerticalOptions="Center" />
            <Label FontSize="14" TextColor="Black" Text="Primary Color" HorizontalOptions="StartAndExpand" VerticalOptions="Center" />
          </StackLayout>
        </StackLayout>
        <StackLayout Orientation="Horizontal">
          <Label FontSize="14" Text="Age:" TextColor="White" HorizontalOptions="Start" VerticalOptions="Center" WidthRequest="100" />
          <Entry HorizontalOptions="FillAndExpand" Text="35" TextColor="White" BackgroundColor="Maroon" />
        </StackLayout>
        <StackLayout Orientation="Horizontal">
          <Label FontSize="14" Text="Interests:" TextColor="White" HorizontalOptions="Start" VerticalOptions="Center" WidthRequest="100" />
          <Entry HorizontalOptions="FillAndExpand" Text="Xamarin.Forms" TextColor="White" BackgroundColor="Maroon" />
        </StackLayout>
        <StackLayout Orientation="Horizontal">
          <Label FontSize="14" Text="Ask me about:" TextColor="White" HorizontalOptions="Start" VerticalOptions="Center" WidthRequest="100" />
          <Entry HorizontalOptions="FillAndExpand" Text="Xamarin, C#, .NET, Mono..." TextColor="White" BackgroundColor="Maroon" />
        </StackLayout>
      </StackLayout>
    </ScrollView>
	</ContentPage.Content>
</ContentPage>

I'm using these startup renderers:

public class Startup : IStartup
	{
		public void Configure(IAppHostBuilder appBuilder)
		{
			appBuilder
				.UseFormsCompatibility(false)
				#if __ANDROID__
				.ConfigureMauiHandlers(handlers => {
					handlers.AddCompatibilityRenderer(typeof(Microsoft.Maui.Controls.BoxView), 
					typeof(Microsoft.Maui.Controls.Compatibility.Platform.Android.BoxRenderer));
					handlers.AddCompatibilityRenderer(typeof(Microsoft.Maui.Controls.Frame), 
					typeof(Microsoft.Maui.Controls.Compatibility.Platform.Android.FastRenderers.FrameRenderer));	
				})
				#endif
				#if __IOS__
				.ConfigureMauiHandlers(handlers => {
					handlers.AddCompatibilityRenderer(typeof(Microsoft.Maui.Controls.BoxView), 
					typeof(Microsoft.Maui.Controls.Compatibility.Platform.iOS.BoxRenderer));
					handlers.AddCompatibilityRenderer(typeof(Microsoft.Maui.Controls.Frame), 
					typeof(Microsoft.Maui.Controls.Compatibility.Platform.iOS.FrameRenderer));
					handlers.AddCompatibilityRenderer(typeof(Microsoft.Maui.Controls.ScrollView), 
					typeof(Microsoft.Maui.Controls.Compatibility.Platform.iOS.ScrollViewRenderer));
				})
				#endif
				.UseMauiApp<App>();
		}
	}

Error:

System.ArgumentException: NaN is not a valid value for width
   at Microsoft.Maui.Size..ctor(Double width, Double height)
   at Microsoft.Maui.Controls.VisualElement.GetSizeRequest(Double widthConstraint, Double heightConstraint)
   at Microsoft.Maui.Controls.VisualElement.Measure(Double widthConstraint, Double heightConstraint, MeasureFlags flags)
   at Microsoft.Maui.Controls.StackLayout.CompressHorizontalLayout(LayoutInformation layout, Double widthConstraint, Double heightConstraint)
   at Microsoft.Maui.Controls.StackLayout.CompressNaiveLayout(LayoutInformation layout, StackOrientation orientation, Double widthConstraint, Double heightConstraint)
   at Microsoft.Maui.Controls.StackLayout.CalculateLayout(LayoutInformation layout, Double x, Double y, Double widthConstraint, Double heightConstraint, Boolean processExpanders)
   at Microsoft.Maui.Controls.StackLayout.OnSizeRequest(Double widthConstraint, Double heightConstraint)
   at Microsoft.Maui.Controls.VisualElement.OnMeasure(Double widthConstraint, Double heightConstraint)
   at Microsoft.Maui.Controls.VisualElement.GetSizeRequest(Double widthConstraint, Double heightConstraint)
   at Microsoft.Maui.Controls.Layout.GetSizeRequest(Double widthConstraint, Double heightConstraint)
   at Microsoft.Maui.Controls.VisualElement.Measure(Double widthConstraint, Double heightConstraint, MeasureFlags flags)
   at Microsoft.Maui.Controls.StackLayout.CalculateNaiveLayout(LayoutInformation layout, StackOrientation orientation, Double x, Double y, Double widthConstraint, Double heightConstraint)
   at Microsoft.Maui.Controls.StackLayout.CalculateLayout(LayoutInformation layout, Double x, Double y, Double widthConstraint, Double heightConstraint, Boolean processExpanders)
   at Microsoft.Maui.Controls.StackLayout.OnSizeRequest(Double widthConstraint, Double heightConstraint)
   at Microsoft.Maui.Controls.VisualElement.OnMeasure(Double widthConstraint, Double heightConstraint)
   at Microsoft.Maui.Controls.VisualElement.GetSizeRequest(Double widthConstraint, Double heightConstraint)
   at Microsoft.Maui.Controls.Layout.GetSizeRequest(Double widthConstraint, Double heightConstraint)
   at Microsoft.Maui.Controls.VisualElement.Measure(Double widthConstraint, Double heightConstraint, MeasureFlags flags)
   at Microsoft.Maui.Controls.ScrollView.LayoutChildren(Double x, Double y, Double width, Double height)
   at Microsoft.Maui.Controls.Layout.UpdateChildrenLayout()
   at Microsoft.Maui.Controls.Layout.OnSizeAllocated(Double width, Double height)
   at Microsoft.Maui.Controls.VisualElement.SizeAllocated(Double width, Double height)
   at Microsoft.Maui.Controls.VisualElement.SetSize(Double width, Double height)
   at Microsoft.Maui.Controls.VisualElement.set_Bounds(Rectangle value)
   at Microsoft.Maui.Controls.VisualElement.Layout(Rectangle bounds)
   at Microsoft.Maui.Controls.Layout.LayoutChildIntoBoundingRegion(VisualElement child, Rectangle region)
   at Microsoft.Maui.Controls.Page.LayoutChildren(Double x, Double y, Double width, Double height)
   at Microsoft.Maui.Controls.Page.UpdateChildrenLayout()
   at Microsoft.Maui.Controls.Page.OnSizeAllocated(Double width, Double height)
   at Microsoft.Maui.Controls.VisualElement.SizeAllocated(Double width, Double height)
   at Microsoft.Maui.Controls.VisualElement.SetSize(Double width, Double height)
   at Microsoft.Maui.Controls.VisualElement.set_Bounds(Rectangle value)
   at Microsoft.Maui.Controls.VisualElement.Layout(Rectangle bounds)
   at Microsoft.Maui.Controls.VisualElement.Arrange(Rectangle bounds)
   at Microsoft.Maui.Controls.ContentPage.ArrangeOverride(Rectangle bounds)
   at Microsoft.Maui.Controls.VisualElement.Microsoft.Maui.IFrameworkElement.Arrange(Rectangle bounds)
   at Microsoft.Maui.LayoutView.LayoutSubviews()

Steps to Reproduce

Run the app with the BusinessTumblePage.xaml

Basic Information

• Version with issue: Preview 3
• Platform Target Frameworks:
  • iOS: 14.4

Reproduction Link

Archive.zip