Why is it that when you try to open a coffer chest it gives you the message "The chest was but a illusion." I can understand after you open a initial chest so that you cant just farm them over and over every 10 min. But when I first zone in sometimes when I check the chest it just dissapears when I use the coffer key which makes getting AF quite annoying, seeing as how the enemys can potentially kill me based on what level I'm trying to open the chest as.
Also to note the zone I was trying to open it in I had not been to in over a week, so I had not just recently been in there. Just really frustraing in zones like Temple of Ugglepih where the chest can be behind a locked door then you would have to re-farm the keys to open it again just to get to the new coffer spawn point.