Sui Network Outage Lasts 6 Hours, $542M TVL at Risk

- Nearly six-hour Sui mainnet halt following software update bug - $542 million in TVL and SUI price volatility intensify reliability concerns Sui Network, one of the fastest-growing layer-1 blockchains, was hit by a severe outage on May 29, 2026 (UTC), as a bug in its gas charging logic triggered nearly six hours of downtime. The incident impacted $542 million in total value locked (TVL) across 137 protocols, raising concerns among users and developers. On May 29, 2026-05-29, Cointelegraph reported that the latest 1.72 software update caused a critical bug and took the mainnet offline for 5 hours and 55 minutes. This outage marked Sui’s second major failure in 2026 and therefore raised urgent questions about its technical resilience. In addition, mainnet validators continued to experience degraded performance even after the team restored initial services, indicating ongoing instability in network operations. The disruption rapidly impacted the native SUI token, and it plunged by 6.6% to a low of $0.90 during the outage before partially rebounding to $0.93. As a result, market participants expressed concerns about Sui’s reliability, given the volume of assets at risk and the recurring nature of its outages. Developers have announced a forthcoming post-mortem review to address the causes and mitigate future risks. As of 21:08 UTC on the same day, Sui (SUI) is trading at $0.901, with a -3.1% change in 24-hour trading volume, according to the latest market survey.