The Sui blockchain suffered a significant setback with its second major outage of 2026 on May 28, causing the network to be down for almost six hours. The immediate result was a notable drop in the SUI token‘s value, creating concern among stakeholders. This incident stemmed from a critical bug related to the recent 1.72 software update, which interrupted all mainnet transactions.
Technical Glitch Details Uncovered
A glitch in the 1.72 software update was pinpointed as the primary cause of the disruption. The error, specifically within the gas fee logic, essentially halted all transactional activity on the mainnet. Sui’s development team promptly addressed the issue via social media, highlighting the need for urgent corrective measures.
The mainnet is currently experiencing a network halt. The Sui core team is actively working on a solution. In the meantime, transaction delays and temporary interruptions may occur. Updates will be shared as soon as possible.
Users received notices that there may be delays in transaction approvals until the issue was resolved. After almost six hours of work, the network was restored, though validators initially faced performance challenges.
How Did This Affect SUI’s Market Performance?
The downtime took a toll on SUI’s market value. Data from CoinGecko reported a 6.6% drop, with prices hitting $0.90. There was a minor recovery afterward, with prices reaching around $0.93.
This decline came after a strong performance earlier in May, when SUI rose by nearly 50% to $1.41. The rise was mainly due to significant token unlocks by a Nasdaq-listed entity and other favorable conditions.
Enhancements like zero-fee stablecoin transactions and privacy-focused innovations have been announced, receiving attention at Consensus 2026. Adeniyi Abiodun from Mysten Labs pointed out these initiatives as integral to Sui’s future trajectory.
- May 2026: 5 hours 55 minutes outage, stopping all transactions and causing SUI to drop.
- January 2026: Over six hours of downtime.
- November 2024: A two and a half hour outage due to a validator cycle failure.
Is There a Pattern of Failures Emerging?
This event marks the third significant network disruption for Sui over two years. In January 2026, the platform was offline for an extended period, and in November 2024, it experienced a validator-related failure. Such repetitive interruptions indicate persistent challenges within the network.
Even with these disruptions, Sui maintains a prominent role in the decentralized finance space. It ranks 13th on the DeFiLlama chart, boasting $542 million in total value spread across 137 protocols. Established in May 2023, Sui aims to cater to the growing demands of financial entities for scalability and speed. The development team is planning a comprehensive report to detail the recent hiccup, aiming to bolster network reliability.
