Guild Wars 2

The Trooper Jerkin (medium chestpiece reward for the Forging the Pact mission) doesn’t show the locked/unlocked status of the skin below the item stats. The name of the skin in the Wardrobe is the Council Chestguard, but selecting the Trooper Jerkin as your reward doesn’t unlock it.

Are you talking about http://wiki.guildwars2.com/wiki/Trooper's_Jerkin
I will add it to the list of wardrobe bugs later: https://forum-en.gw2archive.eu/forum/support/bugs/Collection-Wardrobe-Skin-Bugs-Anomalies

Yep that’s the one! Though this one looks to have been bugged only after the patch, it’s now a yellow item (and acquired in a different mission than before).

Coincidentally I did the mission (used to be a reward for different mission) that featured the old green Trooper Jerkin last week on another medium armour character (to make sure I got the otherwise unavailable Commando Jacket in case the announced reward adjustments removed it). The old piece still had the correct skin locked text, I remember it well since I was all ‘aw too bad that I can’t choose both’.
So it’s very recent bug. And thanks.^^