Hi there, I moved my games to SD card, everything run smoothly, while I was playing a game (Pylon) and I had a call, After the call, my Lumia 620 (upgraded to WP8.1 Dev Review) had no responding. I pressed any button possible, lock screen and unlock but nothing happened. So I had to remove battery then restart. It threw message "SD card error" and required scanning. All OK, but my game data gone away. Now I have to play from the beginning. Is it a bug of WP8.1 about SD card ?
