I completed a 250 piece puzzle, and I guess somehow got logged out during the process of doing the puzzle?
So when I completed the puzzle it told me to log back in, which I did, and then... It did not give me my candy.
(And then I did a teeny puzzle to make sure it wasn't a bigger issue. It's not, the 25 piece gave me my candies.)
((And I am not at currency cap. I'm only at 520 for the day - the 20 being from the little puzzle I did for checks.))