I’m getting a problem that is being reported on a few other forums, where the multi tasking gestures on the iPad (4 finger pinch for the home screen, and 4 finger swipe to switch apps) randomly stops working. The option is still enabled in Settings > General, but the gesture no longer works.
Some have reported that its related to the new keyboard replacements in iOS 8 but I have not installed any on my devices so that doesn’t appear to be the problem. I’ve yet to see any pattern in usage prior to the gesture becoming inoperative.
A workaround appears to be to disable the multitasking gestures options in settings and then re-enable the option and see whether it works. In at least one instants that I’ve experienced it was necessary to actually completely shut down the iPad and restarted (hold down the lock key until the slide to power off message is displayed then once shutdown, hold down the lock key again until you see the Apple logo.
**Update:** This problem still seems to exist on iOS 8.1. Occurring on both iPad mini (original) and iPad Air.
**Update:** This is reported to be fixed in iOS 8.1.3. I’ve so far not experienced this problem in this version. Will update if it comes back.
1. Go to Settings > General and toggle the Multitasking Gestures option off then on.
2. Pull down from the top of the screen to reveal the Notification Centre, then swipe back up to hide it.
3. Rotate screen orientation (i.e. from Portrait to Landscape) – if the orientation doesn’t change, you will need to make sure rotation lock is switched off, either in Settings > General or Control Centre (swipe up from bottom of screen)