Currently experimenting with the Metaplex Storefront, I have incorporated 2 whitelisted wallets for my auction page through the admin section (one of which was used to initialize the page). I conducted a test auction with this particular NFT () that has 2 creators who agreed on a 50-50 split, and the NFT is verified. Surprisingly, at the conclusion of the auction, only the wallet of the auction starter received the full amount of money. Here is the transaction:
View the auction here: