Hi all Got a iPhone 7 Plus a few weeks ago, and after restoring through iCloud backup, everything has been great. Until a few days ago when various third party apps appear to have lost my login details or details, forcing me to login repeatedly (each time I open the app) and/or to set the layout or display preferences. Doesn't happen all the time, seemingly at random, and no saying what app would be afflicted. Have tried deleting apps and reloading from App store, to no avail. It's not a killer, but frustrating. Any ideas as to what has happened and what to do, save a visit to the Apple store?