The Sui blockchain suffered three mainnet halts over two days in late May. The incidents stemmed from a bug in the v1.72 release. The Sui Foundation has since deployed a major upgrade to resolve the issues.
The first outage began at roughly 7 a.m. PT on May 28 and lasted close to seven hours. It was triggered by an edge case in gas-charging logic when transactions used mixed payments involving a new address-balance feature. Validators crashed with an underflow error during insufficient-funds cancellations.
