Sui mainnet suffers three outages over May 28–29, offline for more than 15 hours

CoinDesk reports that the Sui mainnet went down three times between May 28 and 29, resulting in more than 15 hours of cumulative downtime. The Sui Foundation said user funds were not affected and transactions submitted during the incidents were not rolled back. Engineers traced the first two outages to a crash vulnerability linked to an interaction between gas billing logic and Sui version 1.72. The release added an address-balance feature, but the new functionality conflicted with the existing gas-calculation process, causing validator nodes to stop running. The foundation said the team deployed a temporary fix to bring the network back as quickly as possible. It acknowledged the stopgap carried higher risk, and developers continued working on a more robust solution. SUI has weakened alongside the disruptions. The token is down about 18% over the past seven days and was recently trading around $0.86. The broader crypto market also pulled back on Monday, with Bitcoin sliding to its lowest level in nearly two months, adding pressure to SUI. The latest incidents mark the third major stability problem for Sui since its 2023 mainnet launch. The network previously faced a transaction scheduling vulnerability in November 2024 and a consensus disagreement in January 2026, which led to outages of roughly 2 hours and 6 hours, respectively.