Apple users with iOS 11 on their devices have been facing several issues lately from a faulty calculator , to auto-correct glitch , to fast-draining battery. Now, another bug is driving users crazy as they are unable to close WhatsApp app on iPhone. When they try to close, a warning saying, "Swiping to close WhatsApp can prevent you from receiving notifications" is shown. Here's more! In context: iOS-11 bug warns iPhone-users not to close WhatsApp 09 Nov 2017 Now, iPhone-users can't swipe to close WhatsApp on their phones! ❮ Notifications Users might miss WhatsApp message notifications The newly discovered problem appears to stem from the latest iOS 11 update and is likely to affect any Apple device running on it, including iPhone X . Those using WhatsApp on iPhone are being forced to keep the app always running so that they do not miss notifications. Frustrated users took to social media platforms to ...