Sui Network is back online after a nearly six-hour outage that was attributed to a bug introduced in an update marking the second Layer 1 blockchain outage in 2026.
Sui sent to X on Thursday that activity on its mainnet had resumed after “pausing due to a crash bug in the gas charging logic introduced in version 1.72. A full analysis of the incident will be made available in the coming days.”
Sui had it before common that the blockchain “has experienced a network halt” and stated that transactions may be suspended until a fix is made.
The failure lasted 5 hours and 55 minutes, According to to the network status indicator. Sui mainnet validators are still listed as having “degraded performance.”
Source: Sui
This is the second Sui blockchain failure this year, next a similar incident occurred in January when the network was shut down for over six hours. Another incident occurred in November 2024, when all validators were stuck in a failure loop for approximately two and a half hours, preventing transactions from being processed.
Sui is the 13th largest blockchain in terms of total value locked at $542 million and supports 137 protocols, According to to the DefiLlama analytical platform.
Sui Token Drops 6.6% Before Recovery
During the outage, the Sui token (SUI) fell approximately 6.6% to a low of 90 cents, According to to data from the CoinGecko cryptocurrency aggregator. Since then, the price has recovered somewhat and was trading at around 93 cents at the beginning of Friday.
SUI decreased approximately 6.6% during the shutdown. Source: CoinGecko
Earlier this month, the token surged 50% to $1.41 following several positive developments, including a Nasdaq-listed company taking a huge share of the supply and developers announcing upcoming features including zero-fee stablecoin transfers and private transactions.
Sui launched its mainnet in May 2023, aiming to be scalable and able to process transactions quickly enough for financial institutions.
Related: CME Group expands cryptocurrency futures to include Avalanche and Sui contracts
Adeniyi Abiodun, co-founder of Mysten Labs, creator of Sui Network, also announced at Consensus 2026 that free stablecoin transfers and he repeated plans to add a private transaction feature.
Not all of the major cryptocurrency disruptions this year were due to technical issues. In April, Drift Protocol, a decentralized cryptocurrency exchange, was hacked, resulting in a fleeting suspension of deposits and withdrawals.
Kelp, a liquid retaking protocol, was also the target of a cyberattack in April, prompting the platform to pause shrewd contracts for its retaking token (rsETH) while the incident was investigated.
Warehouse: Polymarket courts Japanese entry, Harvard abandons entire ETH position: Hodler’s Digest, May 17–23
