Sui Mainnet Resumes After Validators Fix Gas Charging Bug in 1.72 Release

Sui’s layer-1 mainnet resumed normal operations after validators coordinated a fix and upgraded to a patched version following a bug in the gas charging logic introduced in the 1.72 release.

“Table of Contents Sui Network is facing another major outage, raising fresh concerns about the blockchain’s reliability”

Blockonomi

The outage began on May 28 when validators running the 1.72 update encountered the bug and stopped producing new checkpoints, and the network was back online after roughly 5 hours and 55 minutes.

Blockonomi

Sui said the crash bug in the gas charging logic froze block production and checkpoint updates, and DeFi protocols built on Sui were effectively frozen during the disruption.

The Defiant reported that activity resumed and transactions were "flowing normally," after validators rolled out what the team described as a long-term fix.

TradingView said the network activity resumed at about 3:30 UTC after the last block before the disruption was produced at about 11:51 UTC on Friday.

Sui’s mainnet experienced another disruption on Friday, with the Sui team saying network activity "may be paused" as block production halted.

TradingView reported the disruption lasted "over three hours and 30 minutes" and said the long-term software fix had been implemented by a majority of Sui validators.

bloomingbit

Cointelegraph said both Thursday and Friday halts were due to the interaction of the 1.72 release, which introduced address balances and gas charging logic, and that the interim fix was designed to restore functionality.

Cryptonews.net said the network’s team posted on X: "Sui mainnet is currently experiencing a network stall. Network activity may be paused at this time," as downtime continued.

Bloomingbit reported that the previous day’s outage lasted about six hours, describing it as the longest-ever network outage for Sui.

The outages have renewed questions about reliability after Sui’s second major network disruption in 2026, with DailyCoin tying the timing to CME futures launch and institutional adoption.

“Sui blockchain suffers another network outage as transactions grind to a halt This is the second time this year that the Sui network has suffered an outage”

CoinDesk

DailyCoin said the disruption halted transactions for nearly six hours and that the outage lasted "5 hours and 55 minutes" per Sui’s status page, while Sui stated no user funds were lost or placed at risk.

Sui’s January disruption was also described as lasting over six hours due to a consensus bug, and TradingView said validators submitted conflicting transactions to the protocol’s checkpoint mechanism.

The Defiant said the repeated downtime cuts against Sui’s pitch as a high-speed network built to handle financial transactions at scale, and it described the bug as freezing block production and checkpoint updates.

Cryptonews.net reported that the $SUI token was down 20% this week and that it was "more than 83% off its all-time high of $5.35," as the network stall continued.