Are you sure you'd earned it? Which achievement in particular are you talking about?
Public dungeon boss achievements have 2 tiers: Vanquisher (defeat 3 bosses) and Conqueror (defeat all 5 bosses). Village of the Lost is particularly large and often bosses aren't up when you pass their spawn locations, so it's easy to overlook some.
As for monster trophies, originally when you got the drop you had to USE it to add it to your collection. In fact you could bank it and use it on a different character. This has been changed so that trophies are now automatically added to your collection upon logging them, and you can no longer bank them or use them. Could it be that you never used the banekin horn and that you got it before this change?.
There are two quests in each Public Dungeon, did you do both of them? Killing Bosses and doing the Group Event are separate and do not count towards completing the dungeon. For VoL, you need Holes in the World and Soul Survivors (and I forget which of the two complete the dungeon)
http://www.uesp.net/wiki/Online:Village_of_the_Lost
TheWhiteDarkness wrote: »
Probably completed both, but don't think the quests have anything to do with the boss achievements though.
TheWhiteDarkness wrote: »
Probably completed both, but don't think the quests have anything to do with the boss achievements though.
Not for Bosses, but for turning the Icon White on the map they do. It was unclear exactly what your missing from the OP. I think there is also an achievement for completing these dungeon quests, but that might just be rank and file delves that have those.
Your saying your missing Vanquisher or Conqueror for that dungeon?
TheWhiteDarkness wrote: »
Yes it's turned white on the map, it's the achievements for Village of the Lost Vanquisher, Village of the Lost Conqueror and Village of the Lost Group Event that are now showing unearned even though they had been shown as earned before. Sorry for any confusion.
I have never had those particular achievements go away. So, I have to ask, did you happen to maybe kill these bosses on an Alt?
I've had many achievements vanish over the course of my play time in ESO. Haven't checked recently but they would usually happen after an update/patch.
failkiwib16_ESO wrote: »The boss achievements used to vanish in the early days of ESO, when they changed the bosses or boss locations. I remember a friend of mine had his achievements vanish 3 times or so.
I thought they fixed this poop x_x