When I woke up this morning, most of my live tiles stopped working. By which I mean, I would click on them, the tiles would all swirl away like it was opening the app, but then they would just all come back again. The app wouldn't launch, and I've tried over and over but get the same result every time, just kicking me back to the main screen. It mostly affects my email clients and social media tiles. I tried turning the phone off and on again, but the problem persisted. Does anyone have any advice? Maybe some kind of reset I could do that won't erase my data but might get rid of the problem? Any help would be appreciated, thanks.