MegaETH has announced it will refund the entire $500 million raised during its pre-deposit bridge campaign on November 25, citing operational missteps. The campaign, which quickly reached its $250 million cap, faced issues including site crashes and a multisig error. The team plans to issue refunds through a new smart contract currently under audit, emphasizing the importance of compliance and best practices in disclosures. Despite the setback, MegaETH aims to proceed with its mainnet launch in December, though the incident has cast doubt on its preparedness.