When submitting a universal (iPhone/iPad) Xamarin Forms app to Apple's TestFlight, I'm getting the ITMS-90096 error code complaining about a missing iPhone5 launch image of 320x568. I have supplied all possible launch images in Visual Studio 2013, but makes no difference.
Is there anyway to solve this? Setting the app to iPad only makes it work on iPad, and setting it to iPhone only makes it fail as well.
Any help would be greatly appreciated!