Guild Wars 2

Hello , today i finally got my 30 hot air balloons and killed all the enemies in the crown pavilion i did all the achievements ( i counted 13 not counting the completionist ) but it says 15/16 and i dont understand why it did not complete.

could anyone help me ?

You get extra jubilee achievements under Daily Achievements

Every day there is a jubilee daily achievement and while there should have been an explanation ingame, that’s the way it’s done.