Guild Wars 2

After using the Level 80-Boost item on my Revenant and thus maxing out the core specializations, only the Mistward Leggings collection was unlocked.
The Collection tabs for the Plate, Pauldrons, Warboots and Warfists state, I need to complete the Salvation, Retribution, Corruption and Devastation specialization respectively, which were automatically completed by the Boost.
The achievement repair-NPC added after the HoT launch to fix this problem, located in the PVP Mists, is no longer there to adress my issue.

Has this been sorted out? having the same issue, or I just don’t undertand why therere where “Mistward” items in my inventory after using the 80 boost.

You should be able to buy Guides from Laurel merchants which unlock these collections.