Thank you for reporting these. These are bugs.
However, I'm curious how you managed to obtain the "Fantasy Slut" card, since this should be impossible. (And this is why it appears blank)
Hmm. I Haven't played the game in a few months but i think i got the card just like any other cards. From trading and buying in booster . I don't remember doing anything out of the ordinary other than re-clicking the back and again. I even managed to max upgrade them. I don't remember it being black back then. Just like a normal card