Written by Vince Quill , Staff Writer.Reviewed by Sam Bourgi , Staff Writer.
Written by Vince Quill , Staff Writer.
Reviewed by Sam Bourgi , Staff Writer.
Sui network temporarily stalls again after Thursday’s outage
Latest NewsPublishedMay 29, 2026
The outage was caused by the same network update software bug that disrupted the protocol on Thursday, which resulted in nearly six hours of downtime.
The Sui layer-1 blockchain experienced another disruption on Friday, causing a “network stall” that temporarily halted block production, before normal activity resumed, as reported by the Sui team.
Network activity “may be paused,” the Sui team stated. The network disruption lasted for over three hours and 30 minutes at the time of publication, as reported by the Sui network’s uptime dashboard.
Sui’s mainnet validators experienced disruptions on both Thursday and Friday. Source: Sui
The last block before the disruption was produced at about 11:51 UTC on Friday, as reported by the Suiscan block explorer. Network activity on the Sui mainnet resumed at about 3:30 UTC. The Sui team stated in an update:
“Both today’s and yesterday’s halts are due to the interaction of the 1.72 release, which introduced address balances and gas charging logic. Yesterday’s implemented fix was an interim measure designed to restore functionality to the network.”
The interim fix had a “low probability” of causing a network disruption, and the long-term software fix has now been implemented by a majority of Sui validators.
Source: Sui
The incident follows several major disruptions and network outages, including Thursday’s outage, which caused a nearly six-hour outage due to a “crash bug in the gas charging logic,” as reported by the team. The crash was the second major network disruption in 2026.
Related: SUI spikes 50% amid staking moves, zero-fee stablecoins, privacy push
The Sui network went down in January due to a consensus bug
In January, the network went offline for over six hours, halting block production due to a consensus bug. Validators submitted conflicting transactions to the protocol’s checkpoint mechanism, and the network was unable to reach the necessary threshold for consensus, as reported by the post-mortem report.
Source: Sui
January’s disruption was not caused by network congestion, user funds were “never at risk,” and no “certified transactions” were rolled back, the Sui team stated at the time.
“The issue was detected and contained by Sui’s checkpoint certification and quarantine mechanisms, which prevented any user-visible fork at the cost of halting progress,” as reported by the post-mortem report.
High-throughput smart contract blockchain networks feature several layers, including data availability, transaction execution and validator consensus, which introduce more potential points of failure.
nevertheless, network outages in crypto also impact centralized service providers, including exchanges, which have fewer coordination challenges than decentralized blockchain networks.
In May, crypto exchange Coinbase suffered a temporary service disruption due to an Amazon Web Services (AWS) outage, forcing it to switch markets to an “auction” mode before restoring full service.
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