Sui Layer 1 stalls for hours as developers rush to restore network

The Sui Layer 1 blockchain suffered a major disruption recently, resulting in the complete stall of transaction processing for nearly eight hours. The critical outage forced the network’s core developers and validators into an immediate emergency response to diagnose and rectify the issue.

The network halt began late Sunday evening (UTC), leading to widespread transaction failures and freezing all on-chain activity. This prolonged period of inactivity triggered concerns among dApp operators and investors regarding the network’s robustness under unexpected stress conditions.

Initial findings suggest the stall was rooted in a critical consensus error that prevented validators from agreeing on the next block state. The development team at Mysten Labs confirmed the issue was complex, requiring deep collaboration with the validator community to implement a synchronized fix.

Restoration efforts centered on identifying the specific bug causing the consensus break, developing an immediate patch, and coordinating a safe, state-preserving reboot of the decentralized network. After hours of intensive effort, the fix was deployed, and validators successfully brought the network back online in the early hours of Monday morning. While the network is now processing transactions and clearing the backlog accumulated during the downtime, developers continue to monitor system stability closely to prevent recurrence.

Source: Sui Layer 1 stalls for hours as developers rush to restore network