iOS 9 Splash screen is black

Question

My apps\' splash screens are all plain black after upgrading to iOS9.

Does anybody know why this is? Some of them are using a .xib splash screen and some are using image

Answer 1

Just to point out that once again (as this solution didn't appear in answers, and I've personally lost around two hours when "fixing" that), sometimes, especially when the app is in active development/debugging, it requires iOS device to reboot for the launch screen to be fixed.