The core card of my Death Knight disappear？

[BNscar-3642]

The core card of my Death Knight card, Vampire Blood
There is only one card and it cannot be manufactured, and there is no gold card available either
That is to say, I only have one ordinary card and cannot obtain a second one
This issue has appeared in both my US server account and Asian server account

[Joachim-22234]

They are working on it:

@GnomeSayin-11972

[Added 3/25] [Hearthstone] Only one non-Golden copy of Vampiric Blood is included in the Core Set. Two are expected, to go along with the two Golden copies.