Xamarin iOS Shell FlyoutMenu not rendering correctly - ios

Question

I am using Shell in my App to handle navigation between views and its FlyoutMenu works perfectly on Android as can be seen here:
Screenshot of FlyoutMenu on Android
However, when I open the Flyout on iOS it looks completely different (and wrong):
Screenshot of FlyoutMenu on iOS
This is the code I have in my AppShell.xaml:
<?xml version="1.0" encoding="utf-8" ?>
<Shell xmlns="http://xamarin.com/schemas/2014/forms"
xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
x:Class="CMApp.AppShell"
xmlns:d="http://xamarin.com/schemas/2014/forms/design"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
mc:Ignorable="d"
Title="Cargomando"
xmlns:pages="clr-namespace:CMApp"
xmlns:resources="clr-namespace:CMApp.Resources"
FlyoutBackgroundColor="LightGray">
<Shell.Resources>
<ResourceDictionary>
</ResourceDictionary>
</Shell.Resources>
<Shell.FlyoutHeader>
<Image Source="cargomando.png"/>
</Shell.FlyoutHeader>
<FlyoutItem Title="{x:Static resources:Tour.TitleString}">
<Tab>
<ShellContent>
<pages:TourList/>
</ShellContent>
</Tab>
</FlyoutItem>
<FlyoutItem Title="{x:Static resources:Settings.TitleString}">
<Tab>
<ShellContent>
<pages:Settings/>
</ShellContent>
</Tab>
</FlyoutItem>
<MenuItem Text="{x:Static resources:Footer.PrivacyProtection}" Command="{Binding PrivacyProtectionCommand}"/>
<MenuItem Text="{x:Static resources:Footer.Imprint}" Command="{Binding ImprintCommand}"/>
<MenuItem Text="DEBUG: Tracking stoppen" Command="{Binding StopTrackingCommand}"/>
</Shell>
What am I doing wrong that it works fine on Android but not on iOS? Thanks!

Answer 1

During creation of a sample application for Lucas Zhang I noticed that the sample application works fine. After comparing my App and the sample after some digging I noticed that the problem is caused by defining a global style for Grid in my ResourceDictionary of my App.xaml. Xamarin apparently uses a Grid for the elements in the FlyoutMenu to which my style with a pretty large HeightRequest gets applied but this seemingly only happens on iOS.