Wu said that Sui released an analysis report on the outage yesterday, stating that the Sui mainnet experienced a complete network interruption from 17:15 to 19:45 Beijing time due to a bug in the congestion control code. The issue originated from an assertion error in the TotalGasBudgetWithCap mode, which triggered a validator crash loop when the estimated execution cost of a transaction was zero. After confirming the issue, the Sui team quickly fixed the code and deployed updates v1.37.4 and v1.38.1 to the mainnet and testnet respectively, taking 15 minutes. Sui plans to reduce similar issues and response times by improving the testing system and optimizing the build process.