The other day I salvaged about 20 pve items while I was in the Mists. I was close to getting my monthly achievement so I checked to see how many more I needed to complete. It did not update at all. I thought maybe it was a one-off so I thought nothing of it. Yesterday I did the same and again, no change to the achievement. Have not checked if salvaging pvp items does not contribute but there is definitely something wrong here!