Micah Johnson, an artist and former professional baseball player, launched an astronaut-themed NFT project called AkuDreams. The auction was based around a Dutch auction, with the added twist that the lowest bid would set the final price for the NFT and all who bidded higher would be refunded.The contract suffered from several flaws, however. The first allowed an exploiter to stop all refunds and withdrawals from the contract. Luckily for the team, the exploiter was well-intentioned and only intended to highlight the issue; they removed the block shortly after, leaving a message urging the team to have their contracts audited before release.AkuDreams were not so lucky with the second issue. A bug in the code failed to account for users minting multiple NFTs in a single transaction, which made it so that the claimProjectFunds function that would allow the team to withdraw their earnings can never successfully execute. This means that the team can never withdraw the 11,539 ETH ($34 million) earned from the NFT sales — it is stuck there forever.

Total loss estimated at $34,000,000.