"Play 50 Cost-0 cards in a single turn" BUGGED/Not working :"(

Hi there! this is my 3rd successful attempt at this achievement with a Cost-0 card count of 53 (Video linked below) in a single turn and for some reason, it still won't unlock for me. I'm assume that the Spore cards are not being counted as 0-Cost cards for this achievement? I hope this can get fixed soon!?

VIDEO of my 3rd successful attempt https://www.youtube.com/watch?v=Yjn8jSvIg04