Maybe something's wrong. Or is it ... stuck? I've never seen anything like this when I used the IPAD. My QQ has also been upgraded. Why not double-click the round button, then press and hold QQ in the background, turn it off once and then turn it on again? If not, delete QQ and download again. The second time should be successful. Another possibility is that you can't see anyone's signature or friends' signature? Maybe the friend hid or didn't write his signature.