Sui’s development team has resolved the software bugs that took the network down three times this month, causing more than 15 hours of cumulative downtime. The native SUI token has dropped 11% since the first disruption. The outages are the most serious test of Sui’s reliability to date and have raised questions about the chain’s ability to maintain uptime.
Three outages in May
The first outage happened in late May, followed by two more over roughly a week. Each halt stopped block production, preventing validators from finalizing transactions. The Sui team traced the root cause to bugs in the consensus code and released patches that all validators had to install before the network could resume. User funds were never at risk, the team said.
What the bugs hit
The bugs specifically targeted the chain’s ability to reach agreement on the state of the ledger. Without consensus, no new blocks could be added. Sui’s architecture uses an object-centric design that differs from traditional account-based models, but the vulnerability lay in the validator coordination logic. The patches correct that logic.
SUI price reaction
SUI’s price has fallen 11% over the period of the outages. The token saw selling pressure after each incident, with volumes spiking as traders reacted to the instability. The declines erased gains made earlier in the month. SUI now trades at levels not seen since before a recent rally.
Network recovery
The patched software is now running across all validators. The network has been stable for about two days as of June 1. The Sui team has not yet released a detailed technical post-mortem, but validators continue to monitor the chain closely. For a blockchain that prides itself on speed and throughput, staying online will be the next big test.
