I also have this problem. I got a double drop on a pack of "Earthquake Dragon", when I went to add it to my deck it says y"Deck Contains Cards Not in Your Collection". I try to add only one instead of 2 and it turns out to be a legal deck.
I assume the problem is that they came for a double drop in a pack.
Cabbage#63956, KRAUTH#80832, Mintman#63051, DragonKnight#29252 do you remmenber if your copies came from a double drop on a pack?
I also have this problem. I got a double drop on a pack of "Earthquake Dragon", when I went to add it to my deck it says y"Deck Contains Cards Not in Your Collection". I try to add only one instead of 2 and it turns out to be a legal deck.
I assume the problem is that they came for a double drop in a pack.
Cabbage#63956, KRAUTH#80832, Mintman#63051, DragonKnight#29252 do you remmenber if your copies came from a double drop on a pack?