I've been going through my Grimoire post-patch (whichever one fixed the Freehold Station Ghost glitch) and there's still a couple of cards where I've either fulfilled the unlock requirements and it's glitched or the unlock requirement is in no way related to the card. The rest are multiplayer cards, Exotic weapons or PS4 content. If anyone knows how to unlock them, help would be much appreciated.
Guardian, Sub-Classes - Guardian Abilities
Allies, Rasputin - Rasputin
Enemies, Fallen - House of Wolves
Places, Mercury - Mercury (Despite having Ghost Fragment: Mercury and The Burning Shrine)
Activities, Dark Below - The Wakening (Played twice on Hunter and Warlock, still locked)
Activities, Playlists - Combined Arms (Have played 10+ games across multiple weekends and still no unlock)
Activities, Crucible Arenas - Skyshock (Played this, GS tracker for Pantheon appears in endgame, 0 points credited, no cards)
Activities, Crucible Arenas - Anomaly (I have NEVER seen this map spawn. Not once. Ever.)
Activities, Crucible Arenas - Pantheon
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For Activities - Dark Below, are you sure it's not Will of Crota. When I beat that strike (not as a Nightfall or heroic since it didn't show up then), I got a grimoire card pop up saying I unlocked the Will of Crota card but I don't see it in my Grimoire.