After hours of struggling with this for hours we got it to build to iOS. It was a combination of making sure the Deployment button was checked then rebuilding all clean as well as 10 other steps I forget. But after all that once the package was successfully uploaded we got:
Missing Info.plist value - A value for the Info.plist key CFBundleIconName is missing in the bundle. Apps that provide icons in the asset catalog must also provide this Info.plist key. For more information see http://help.apple.com/xcode/mac/current/#/dev10510b1f7.
Once these issues have been corrected, you can then redeliver the corrected binary.
This appears caused by Unreal putting an “Icon Files (ios5)” key in the plist but not a plain “Icon Files” one. So we added that key to the additional PLIST data and are trying that.
I can’t believe how hard it is to push to app store for Unreal compared to Unity. Already spent more than 6 hours on it.