Sui Network Faces Outage as Block and Checkpoint Creation Stalls

TLDR

• The Sui Mainnet has stopped block production due to an ongoing network disruption.
• No new checkpoints have been generated for over an hour since the stall began.
• The Sui core team confirmed the issue and is currently working on a fix.
• Affected services include ecosystem platforms such as SuiScan and Slush.
• All on-chain transactions remain frozen until the network resumes normal operation.

The Sui Mainnet experienced a sudden and ongoing network disruption that has stopped block production entirely, suspending all on-chain activity. The disruption, which began Tuesday morning, led to a halt in checkpoint generation and caused a full standstill in transaction flow. As of now, no official recovery timeline has been provided, though efforts to resolve the issue are in progress.

Sui Network Freeze Pauses On-Chain Activity

The Sui core team acknowledged the issue on Tuesday at 7:18 a.m. PT through official communication channels and social media posts. Explorers tracking the Sui Mainnet confirmed that no new checkpoints had been generated for more than an hour. This confirmed that the consensus mechanism and block finalization processes were fully stalled.

The sudden stall left submitted transactions unprocessed, effectively freezing user operations across the network. Pending activities are not being confirmed, and no updates have been recorded on-chain since the disruption began. Without new checkpoints, on-chain state updates remain paused, blocking all scheduled activity.

“The team is actively implementing a fix,” stated the Sui core developers in a public message posted shortly after the incident was confirmed. However, they have not offered a specific timeline for full restoration or disclosed the underlying cause. The issue remains under active investigation, with technical teams working to stabilize the system.

Sui Ecosystem Applications Report Service Interruptions

DApps and services within the Sui ecosystem are directly affected by the ongoing disruption in network operations. Platforms including SuiScan and Slush began experiencing degraded performance shortly after checkpoint generation halted. These services rely on real-time data and are now facing delays or failing to respond entirely.

Users interacting with applications built on the Sui Mainnet are encountering failed requests and frozen interfaces. As transactions cannot be processed, normal application behavior has become unreliable across multiple services. Developers have confirmed they are monitoring the situation but have not issued individual workarounds.

Ecosystem performance is expected to remain affected until the checkpoint system resumes. Without active block production, transaction throughput cannot resume, keeping all activity suspended. The Sui team has not provided estimates for resolution or outlined further contingency measures.

Core Team Confirms Fix Deployment Without Recovery Timeline

The Sui core team promptly confirmed the mainnet stall shortly after it was detected and began deploying a fix. As of the latest updates, the team described the situation as being under active investigation. However, no further status updates regarding network recovery have been issued.

All activity across the Sui blockchain remains paused, as checkpoint generation has not yet resumed. On-chain explorers continue to show no new blocks produced since the disruption was first identified. This pause continues to affect all parties relying on real-time Sui Mainnet operations.

The root cause of the disruption has not been disclosed by the core team. Technical teams are continuing to monitor and work on restoring network performance. Until normal operations resume, users should expect delays and disruptions across all mainnet services.

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