Hi all I am playing this for the last days and indeed it happens when you pick to mono color decks from the same color (have confirmed it for black, white, blue and red). The gold is not lost you have to wait roughly 30-60 min then it lets you repick. If you choose the same decks the error occurs again and you have to wait another 30-60 min. If you chose any other combination you can progress normally. This reduces the playable combinations and I submitted a ticket -> just don't pick two decks of the same mono color.
Hi all I am playing this for the last days and indeed it happens when you pick to mono color decks from the same color (have confirmed it for black, white, blue and red). The gold is not lost you have to wait roughly 30-60 min then it lets you repick. If you choose the same decks the error occurs again and you have to wait another 30-60 min. If you chose any other combination you can progress normally. This reduces the playable combinations and I submitted a ticket -> just don't pick two decks of the same mono color.