Sui Restores Mainnet Operations After Second Outage Tied to Address Balances Bug

Sui Restores Mainnet Operations After Second Outage Tied to Address Balances Bug

According to Sui and The Block, the network resumed normal mainnet activity after back-to-back outages caused by a version 1.72 bug involving Address Balances and gas charging logic, raising stability concerns.

SUI
WAL

Fact Check
The claim is directly confirmed by the official @SuiNetwork X post (https://x.com/SuiNetwork/status/2060005543406899294) dated 2026-05-28, whose wording matches the claim almost verbatim ('network stall,' 'core team is actively working,' 'transactions may be paused'). Independent reporting from BlockBeats corroborates same-day coverage.
    Reference123
Summary

Sui said it has restored normal mainnet operations after a second outage that followed its May 29 disruption by less than 24 hours. The project said the original outage lasted 5 hours and 55 minutes and was caused by a bug in the gas charging logic introduced in version 1.72; it later clarified that the second outage was tied to interactions between the new Address Balances feature and that gas charging logic. Sui stated that validators deployed a long-term fix and that known issues connected to the original bug have been fully resolved, with a detailed incident report to follow. During the later incident, The Block reported that the network had not processed a block for nearly two hours. The repeated disruptions also affected infrastructure such as Walrus Protocol writes and weighed on SUI, which traded around $0.90 during the later stall, had earlier fallen about 8% during the prior outage, and was later described as one of the weakest-performing top 100 crypto assets over the past week.

Terms & Concepts
  • Mainnet: A blockchain’s live public production network where real transactions and assets are processed and finalized.
  • Address Balances: A version 1.72 Sui feature designed to move away from the UTXO model by providing a single canonical balance for each token type.
  • Gas charging logic: The software mechanism that calculates and applies transaction fees on the blockchain.