Sui Network Recovers From Hours-Long Network Stall Triggered by Upgrade Bug

• The outage lasted 5 hours and 55 minutes, according to the network’s status indicator.
• The Sui (SUI) token dropped around 6.6% to a low of 90 cents during the outage, according to data from CoinGecko.

Sui Network is back online after a nearly six-hour outage on Thursday, which it attributed to a bug introduced by an upgrade, marking the layer-1 blockchain’s second period of downtime in 2026. Sui team posted to X on Thursday that activity on its mainnet had resumed after a halt due to a crash bug in the gas charging logic introduced by the 1.72 release and a full incident review will be shared in the coming days.

Sui had earlier shared that the blockchain was “experiencing a network stall” and said that transactions could be paused until a fix is rolled out. The outage lasted 5 hours and 55 minutes, according to the network’s status indicator. Sui mainnet validators are still listed as having “degraded performance.”

It is the second outage of the Sui blockchain this year, following a similar incident in January where the network was knocked offline for more than six hours. Another incident occurred in November 2024, when all validators were stuck in a crash loop for around two and a half hours, preventing transactions from being processed.

Impact on SUI Price

Sui is the 13th-largest blockchain by total value locked at $542 million and hosts 137 protocols, according to analytics platform DefiLlama. The Sui (SUI) token dropped around 6.6% to a low of 90 cents during the outage, according to data from crypto aggregator CoinGecko. It has since recovered slightly and was trading for about 93 cents as of early Friday.

Earlier this month, the token climbed 50% to $1.41 after several positive developments, including a Nasdaq-listed company staking a large portion of the supply and developers announcing upcoming features, including zero-fee stablecoin transfers and private transactions.

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