The Sui mainnet is experiencing a network disruption that has temporarily halted block production, bringing on-chain activity to a standstill. Official communications confirm the issue, with some network explorers showing no new checkpoints generated for more than an hour, disrupting normal transaction flow. The interruption was acknowledged by the Sui core team on Tuesday. At approximately 7:18 a.m. PT, the team confirmed the mainnet stall and stated that a fix was actively being implemented. No timeline for full recovery was provided at the time of the announcement, but the issue was described as under active investigation.
Block Production Halt Confirmed
The primary impact appears to be a complete pause in block and checkpoint generation on the mainnet. Explorers tracking Sui activity began reporting a lack of new checkpoints, signaling that consensus and block finalization were not progressing as expected. This condition effectively freezes on-chain state updates until normal operation resumes. With block production stalled, transactions submitted during this period are unlikely to process as intended. Pending activity may remain unconfirmed until the network recovers and checkpoint generation restarts.
Services and dApps Affected
The disruption has spilled over into the broader Sui ecosystem. Services and decentralized applications relying on live network data, including SuiScan and Slush, are reported to be inaccessible or experiencing degraded functionality. Users attempting to interact with applications built on Sui may encounter delays, failed requests, or unresponsive interfaces. Until the network resumes normal operation, transaction throughput is expected to remain impaired. The core team has not yet detailed the root cause of the stall or whether any additional mitigation steps are required beyond the fix currently being deployed. For now, the Sui mainnet remains in a recovery phase, with ecosystem activity effectively paused as the technical issue is addressed.