Sui Network back online after ‘crash bug’ causes 6 hour outage
Sui’s mainnet returned after a bug in its 1.72 update caused a 5 hour 55 minute stall and pushed SUI lower before recovery.
Intelligence analysis by GPT-5.4 Mini

Sui restarted after nearly six hours offline, blaming a crash bug in gas charging logic from the 1.72 release. The outage hit SUI’s price and marked the chain’s second downtime event in 2026.
Sui is like a busy digital highway for moving money and data. For a while, a broken rule in its system made the highway stop working, so cars could not pass.
The people running it fixed the problem and got it moving again after almost six hours. They said they will explain exactly what went wrong in a later report.
When the highway stopped, the price of SUI also dipped. That matters because people want blockchains to keep working smoothly, the same way people want a bridge to stay open.
Analysis
What happened
Sui said its mainnet resumed after a halt caused by a crash bug in the gas charging logic introduced by the 1.72 release. The outage lasted 5 hours and 55 minutes, and the network said a full incident review would follow in the coming days.
Impact on the network
Before recovery, Sui had warned that it was experiencing a network stall and that transactions could be paused until a fix was deployed. Even after the chain came back, its status indicator still showed validators as having "degraded performance," suggesting the recovery was not entirely clean.
Market reaction
The SUI token fell about 6.6% to a low of 90 cents during the outage, according to CoinGecko, before recovering slightly to around 93 cents early Friday. The token had climbed 50% earlier in the month to $1.41 after a run of positive developments, including a Nasdaq-listed company staking a large portion of the supply and announcements about upcoming features.
Broader context
This was Sui’s second outage of 2026. The article also points to a January incident that took the network offline for more than six hours and a November 2024 crash loop that prevented transactions for around two and a half hours. Sui, which launched its mainnet in May 2023, is positioned as a fast, scalable layer-1 aimed at financial use cases.
Key points
- Sui said its mainnet resumed after a halt tied to a crash bug in gas charging logic from the 1.72 release.
- The outage lasted 5 hours and 55 minutes and was the chain’s second downtime event in 2026.
- SUI fell about 6.6% to 90 cents during the outage before recovering slightly.
- Validators were still shown as having degraded performance after the network came back online.
- The article says Sui will publish a full incident review in the coming days.



