Guild Wars 2

Greetings!
I try to make this achievement,but seems its bugged.

Two place im missing.

Timberline Falls:The Foundation Stone
I discovered both places. Please help!

Dredgehaunt Cliffs:Tribulation Caverns – I have it twice in my list,one is completed. The JP is done.

Thank you!
Attachments:

I found the answer!
Leave this two.
You just need to explore the rest of Shiverpeak places,and you get the achievement.
Anyways its so interesting.