Problem with Astral event.

I did the Astral event and after I got all the stars I wanted and tuned in for Virgo cards I went to get the Virgo Eudemon warrior and Mge. But it told me that I dont have any Virgo cards on me so it will not let me trade in my cards for the pets I wanted.

drop one card and pick it back up it stacks when u do this thats the only way its accepted by npc