Since the patch for The Dark Below I lost credit for collecting some dead ghosts. I'm not sure it was the patch that caused it. I am, however, wholly sure that I've picked up these 3 ghosts before. (Archer's Line: The Moon - and the 2 already proven unreliable Freehold Station: Mars/ Bunker RAS-2: Earth) I regained credit and more Grimoire Score when I acquired them so they seem to be functioning properly now but I may have extra Grimoire Score and, besides, I hunted for them all once. Don't make me do it again.