Can't start premade match

[full violet]

You need to each have exactly 10 unique cards

[onyx shoal]

Thanks, deleted my post. My friend must have had an incomplete deck

Actually we both remade our decks and are having the same issue again

We both have 10 unique cards in each of our decks

For other people with this issue

Clarified by tODDlife —
they changed premade deck requirements,
no wildcards, no cards the same as your teammate

Feature suggestion: Have card slot in player deck highlighed in red to show players which card are invalidating the deck requirement such as having too many shared copies