Playing on PC W11, found two annoying bugs in the deck building screen since a while :

1 - the most annoying : sometimes when you want to add a card already existing in your deck, the "+" is greyed and not clickable when it's possible to add the card using the collection above
2 - cosmetic issues : not appearing card cover, sometimes not able to change the deck "cover" card without restart the game, the orange rectangular "shadow" behind the deck can mask the first card in the deck