Object in <Scene/> contradicts with <View /> on pages

I am trying to make a 3d background in `<Scene />` that persist across navigation. 
But there's only `<View/>` that is put on pages (in {children}) showing on screen, the 3d background in <Scene /> does not show. 
I'll have to get rid of  `<View />` in page to make the `<Scene />`  show. 
Do i miss anything?

 