Talk:Light of Dem

I beat Cop and way later returned to get the Mithra Light of Dem on the NorthWest tower only to be told there is nothing to be investigated further. WTF!!! I died twice getting there solo and I'm denied! The map showed my position on the NW tower and all the maps in FFXIclopedia show Mithra on the NW tower. Are the maps wrong or is it something else?