Mobile data toggles for apps in settings will not stay turned on after iOS 9 update.
After updating my iPhone 6 to iOS 9 some of my apps mobile data toggle switches will not stay turned on. I have tried turning them on through the 'Mobile' tab in settings & I have tried turning them on through each individual apps settings. I have also tried resetting all settings through the 'General' tab in settings.
Any help would be appreciated.
iPhone 6, iOS 9