Sui blockchain experienced a second major network outage Friday morning, less than 24 hours after its previous incident. The network has not processed blocks in nearly two hours according to Suiscan, with the Sui Core team actively investigating the stall. The outage follows Thursday's 5-hour 55-minute downtime caused by a bug in gas charging logic introduced in the 1.72 release, marking Sui's worst outage on record and its second major incident since January.
"Sui mainnet is currently experiencing a network stall. Network activity may be paused at this time," the Sui team posted to X on Friday morning. "The Sui Core team is actively investigating. Updates and incident review will be shared as soon as they are available." The SUI token is trading at $0.90, down slightly on the day.
Thursday Outage Lasted Nearly Six Hours
On Thursday, Sui went down for 5 hours and 55 minutes according to its status page, its worst outage on record. This follows a similar outage in January. Sui's status page is reporting another "major outage" less than a full 24 hours following Thursday's event.
Bug in Gas Charging Logic Caused Thursday Stall
Sui said Thursday's "network stall" was caused by a "bug in the gas charging logic introduced by the 1.72 release," though a full post-mortem has not yet been published. Sui's documentation notes v1.72.2 introduced two major protocol enhancements, including Address Balances and Gasless Stablecoin Transfers. "Gasless Stablecoin Transfers enable supported stablecoins to be sent peer-to-peer --- including batched PTBs --- with no gas fees and no gas token required," the release notes read.
Two-Thirds of Validators Upgraded to Thursday Fix
Sui's status page shows that at least two-thirds of the validator set had upgraded to the fix rolled out Thursday. It is unclear if Friday's issue is connected to the same bug. Sui's status page has yet to post about the current outage.
FAQ
What caused Sui blockchain's outage on Thursday?
Sui said Thursday's network stall was caused by a bug in the gas charging logic introduced by the 1.72 release. The outage lasted 5 hours and 55 minutes according to its status page.
How long has Sui's Friday network stall lasted?
The Sui blockchain has not processed blocks in nearly two hours according to Suiscan as of Friday morning. The Sui Core team is actively investigating the issue.
What new features did Sui's v1.72.2 release introduce?
Sui's v1.72.2 introduced two major protocol enhancements: Address Balances, which simplifies transactions by shifting away from Sui's UTXO model, and Gasless Stablecoin Transfers, which enable supported stablecoins to be sent peer-to-peer with no gas fees.
