组件不会在NavigatorIOS中呈现 - React Native

I can't get this simple NavigatorIOS test to work. The console log in My View triggeres, and I can get it to render if I skip the NavigatorIOS component, and render MyView directly. However, when MyView is triggered from a component within the NavigatorIOS component, it won't render anything else than 'My NavigatorIOS test'.I can't get this simple NavigatorIOS test to wo