? - Archvmnt BUG

Hello, trying to complete the achievements that give card backs as a reward, see the back of the Wayward Fish Delight, or the ‘’???‘’ achievement of the Barrens expansion, it required some cards or a specific deck to be able to activate a puzzle that when completed would give those backs as a reward. As a result of the rotation of the cards from one type to another (standard/classic set) those achievements can no longer be obtained, I would say that it is a bug, because following the tutorials that are on YouTube to the letter I can not activate some of them, I posted this same problem on the forum and other users made me see that I am not the only one with this problem, I would like to know if you will finally be able to get these backs and if these problems will be solved, thank you very much :slight_smile: