Guild Wars 2

I got the Second Aetherblade Site poi but I still didn’t get completion for the map. It’s keeping me from getting the Krytan Explorer achiev as well.

Map completion is unrelated to the Explorer achievement.
Completion is done by getting all PoI, filling hearts, viewing vistas and completing skill challenges.

Explorers achievements are done by uncovering parts of the map. Some parts of the maps has none of the map completion items.