ToolbarItems Xamarin Forms with ios 11

I updated xamarin to latest version and xcode so I am using ios 11 with xamarin forms but toolbaritems don't display properly.
When I have two items only one displays. When I have one item on toolbar, I cannot see an item. Is something new with toolbar and ios 11 ?

<ContentPage.ToolbarItems >
         <ToolbarItem  Icon="icon1.png" Command="{Binding Command1}" Order="Primary"  />
         <ToolbarItem  Icon="icon2.png" Command="{Binding Command2}" Order="Primary"  />
     </ContentPage.ToolbarItems>

In previous version all toolbaritems were working properly.
In android and uwp toolbaritems are still the correct ones.