The Sui blockchain experienced a network outage on Thursday that halted transaction processing for nearly six hours [1].
This incident highlights stability concerns for the network as it struggles with software bugs that impact its core functionality and market value. Repeated outages can erode investor confidence in the reliability of the infrastructure supporting the SUI token.
The outage lasted five hours and 55 minutes [1]. The disruption was caused by a bug in the 1.72 software release specifically related to gas-charging [1], [2]. This error prevented the network from processing transactions, effectively bringing the mainnet to a standstill [4].
Market reaction to the downtime was immediate. The price of the SUI token dropped 8% within the 24-hour period following the outage [4].
Validators eventually implemented a fix to restore the network [2]. This event marks the second multi-hour stall the Sui blockchain has suffered this year [2]. The network returned to normal operations after the bug was addressed, though the incident adds to a growing list of technical challenges for the platform [1], [3].
Technical teams identified the root cause as a flaw in the way the 1.72 update handled gas charges [1]. Because the blockchain relies on precise gas calculations to execute smart contracts, and transfers, the error caused the system to fail globally [4].
“The outage lasted 5 hours and 55 minutes”
The recurrence of significant downtime suggests that Sui's update deployment process may lack sufficient rigorous testing. For a layer-1 blockchain, uptime is a primary metric of viability; repeated failures in core software releases like 1.72 may lead users to migrate to more stable competitors.





