Every screenshot submitted to the App Store Connect listing must reflect the real, current app experience on that device — no composited mockups, no screenshots from a different app version, no borrowed screenshots from a web or Android version.
Common with cross-platform apps that reuse marketing screenshots across stores, or when a redesign ships without updating the listing's screenshots to match.
"Your app's screenshots do not sufficiently reflect the app in use. Screenshots must show the app's UI as it will appear when the app is reviewed."