Guild Wars 2

I wonder if there is a bug or if it’s meant to be.

I’ve completed Verdant Brink Zone 100% with my Thief but didnt get a reward. Which i got 100% World completion on, Heard a rumor of that it might be the problem for the reward from area completion in Maguuma

Shortly after, I completed Verdant Brink on my Necromancer(which havent 100% World completion) and recieved a reward.

I know I’m not the only one that have experience this. but couldnt find a thread for it.

I havent seen any response from Anet about this problem, more people seem to have aswell.
In the Black lion trading market, i press the “buy Gems” button and nothing happens, aswell with the redeem code one
Just want to know if you are aware, already on it ?
Thanks in advance.