The failure was in the module that calculates and charges the commissions for each transaction, according to Sui.
It is not the first time: Sui already recorded similar interruptions in November 2024 and January 2026.
The Sui network was paralyzed for more than 5 hours yesterday, May 28, after a bug in its software version 1.72 stopped the processing of all transactions, according to the team behind the network. The SUI token, the network’s native currency, fell 6.25% on the day, from $0.96 to a low in the $0.90 area.
The developer team warned about the problem in a first post on pointed out: «The Sui mainnet is experiencing a shutdown. Sui’s core team is actively working on a solution. “Transactions may be paused at this time.”
Later, in a second one, published after the resumption, he specified the cause: “Activity on the Sui main network resumed after a stoppage caused by a critical bug in the gas charging logic introduced by version 1.72.»
The gas charging module is the software component that automatically calculates and deducts commissions from each transaction before processing it. When that module fails with a crash error, that is, an error that abruptly stops program execution instead of handling it and continuing, node cannot advance to next blockand if that happens simultaneously on the validators holding up the network, processing stops completely. That was the mechanism that paralyzed Sui.
The team announced, according to its publication, that it will share “a full review of the incident in the coming days,” without specifying a date.
It is not the first time that Sui stops working
In November 2024, the network was more than two hours without producing blocks after a failure. On that occasion, as reported by CriptoNoticias, the SUI token fell more than 7% on the day.
Likewise, in January 2026 the pattern was repeated: a new arrest of several hours was confirmed by the network developers.
The accumulation of at least these three interruptions raises a question about the operational resilience of the network in a segment where Sui competes with other chains such as Solana, Aptos and Avalanche using processing capacity as a central argument.