Anyone now got an issue with the recents/app switcher screen? This worked great before. I'm using the Samsung gestures with the 3 thin guide buttons at the bottom. A flick up on the right hand one showed me all the recent/running apps. A swipe from middle to right switched to the last used app. Now a swipe up shows a small single screen of the running app which I can do nothing with - I have to then swipe on home to get out of it. Middle to right swipe gesture does nothing. Any idea what's happened?