Guild Wars 2

Many Air Towers are bugged, even if I never visited, when I get over them after completing the event, I find the chest already open and it doesn’t count for the achievement.

I noticed that Air Towers remember which of your characters has opened them. So you’ll have to travel across maps and do Air Towers you haven’t done before to get your achievement count up..

This achievement has been bugged since day one and they never fixed it. Unfortunately the only thing you can do is go to extra balloon towers. There are 2 in each of the maps except 2 high level zones. I had to do more than required to get my achievement.