I’ve got my orientation set to portrait - that’s why there are no landscape screens. Duh!
But I’ve uncovered a new issue - the splash screen warps in the middle for a moment on starting up. Very odd. Doesn’t affect the iPhone 5S but it does the iPhone 6, and the iPhone 6 emulator.
Oh, and I only got the splashscreens working by using the cordova plugin, which isn’t mentioned in the Ionic Resources docs (and was unnecessary in the past and on Phonegap Build).
There’s a spinner that appears in the middle of the loading screen. Depending on what your background image is it might look like it is ‘warping’ rather than being a spinner!
I think adding <preference name="ShowSplashScreenSpinner" value="false"/> to your config.xml file disables it if you want to test if that’s the cause.