Puzzles

When playing the puzzles, I have a blue flag next to the starter pack puzzles. The other ones have no flag. After completing each one (in order) I did not get any reward. The blue flag remains next to the Starter Pack. Also, (this may or may not be normal) when finishing each puzzles, I ascend the stairs, the game quickly moves to loading then returns me to the town screen. Shouldn't I stay in the Explorer's Guild or have the option of moving onto the next puzzle? Each time I had to re-enter the guild manually and select the next puzzle.