Decentralized derivatives trading platform Hyperliquid has released an incident report on Arbitrum's cross-chain failure, explaining why its cross-chain bridge went down on Monday. Its anonymous developer iliensinc said there was an "extremely rare edge case" where multiple RPCs (remote procedure calls) received erroneous data. The team is currently improving the monitoring process to prevent the same false positives from being triggered in the future. All user funds are safe.