I don't know whether to call this a glitch or sheer bad luck. I am running the game on an LG Risio with android 5.1.1 and ordinarily it runs ok sometimes it spazzes out for a second if I have a call or a message come in and i'm playing but other than that no problems. Anyway I had just finished the challenge for getting 2800 points of food had received my lunchbox hit it to unlock it was just about to tap my cards to claim them when the game crashes and throws me back to my home screen. I loaded up the game again and sure enough its all gone. No extra items, no added points just missing along with a chunk of my heart... As I am sure anyone who has played long enough to start getting those challenges can imagine that one hurt a little, and it came out of nowhere because before that I had not had a single issue with the game at all.

That svcks. Tell yourself the lunchbox just had a 500 cap card in it and you won't feel bad anymore.