Is this achievement bugged? I have been searching all over the lava, everywhere and haven't found any. On the day of the release I found the rarest one Multi-Planar Temporal Stone (last one on list is most likely the rarest.) but I believe it was misplaced, it was around the sinking house southwest in the zone.
Looks broke to me. When expansion first launched they was spawning, but seems there must be a bugged spawn loc so after a while they ended up in the bugged spot
Most likely the same issue as in many other zones at first with a broken spawn point that you cannot see or reach and over time they all wind up stuck.
Seems like the bug with the ones in the center of shard's landing. once they are picked up they don't want to respawn.