Master of the Ancestral Forge bug?

[Snadder.6890]

So i wanted the helm i get for the master of the ancestral forge achievement, so i bought all the weapons from the trading post and then i unlocked their skins, i realised afterwards that i needed the path of fire xpack to get the letter thingy for the first step, bought it, got the letter, but the weapons are not unlocked? is this a bug or have i done something wrong somewhere 

https://gyazo.com/b53a5a9a685679e40260c19fb844c42e

[Inculpatus cedo.9234]

It may be, as it is with some other collections, that the collection must be unlocked before items will register.

 

You can contact the CS Team, though I'm not sure they can assist you with this.