On iOS, the splash screen for my dictionary app appears for less than 1 second, even though I have set it to appear for 4 seconds; and it does not fill the entire screen, even though I have loaded images at all the required sizes (640x960, 640x1136, 750x1334, and 1242x2208). (I am testing on an iPhone 6.) I do not have these problems on Android.
Also, in the iOS Splash Screen tab of the Images section in DAB, the file size of all the loaded images is shown as “0”; this is not true of the Android splash screen images, or the icon images for either platform.
I am using Version 8.3.1 of DAB.