So I was looking through my exotic weapon kiosk and noticed something odd. When I scroll over to Super Good Advice and Universal Remote, it says "Requires Discovery". But I remember that I had both of those weapons prior to Taken King. Doubting myself a bit, I checked my Grimoire and sure enough, I have both of those cards unlocked. Is there a reason why I still have yet to discover those weapons? I'm almost certain I that Dragons Breath as well, but that isn't unlocked either. All of my other exotics are listed as unlocked and purchasable.