I have a Dutch version of the Catan card-game so bear with me a little regarding translation to English.
My question refers to the event card that allows both players to search through a pile and put back one card from their hand. This event card is called "Bouwmeester" in Dutch, roughly translates to "Build Master" in English.
The Dutch text on this card is unclear about whether, when you choose to take a card from a pile, you need to put back your card under the same pile or may put it back under any pile.
So what is the formal ruling of this event card?