Happened the same thing to me... Bit try to download it Again and then go in.

Well that sucks

You'll get used to the lag. I did. It only lags for like the first week of updating it.

I tried that Coa, but it still won't work! ;3;

It doesn't do that to me even the ugh I have the newest update. Press the home button twice and swipe up on the app. Then open it again