Sui Community recorded its third transaction processing disruption in roughly 48 hours on the mainnet on Might 29, when a problem through the epoch transition brought about the community to quickly reject person transactions. In accordance with updates from Sui, the incident occurred following a collection of patches associated to a gas-charging logic bug within the v1.72 launch, elevating considerations concerning the stability of this Layer-1 as DeFi and stablecoin actions on the community proceed to develop.
By the tip of Might 29 PDT, Sui acknowledged that the mainnet was again on-line and transactions had been being processed usually. Nevertheless, the Sui Standing web page nonetheless famous that validator participation had not absolutely stabilized following the “Mainnet settlement” incident.
Incident Timeline
Might 28, 07:15 PDT: Sui Standing recorded the “Mainnet settlement” incident and acknowledged that the mainnet was experiencing a disruption whereas the Sui Core crew investigated the trigger. Might 28, 13:32 PDT: Sui acknowledged that greater than 2/3 of the stake had upgraded to the patch, serving to the mainnet resume operations after the incident associated to the gas-charging logic within the v1.72 launch. The primary disruption lasted practically 6 hours.Might 29, 08:43 PDT: Sui continued to document a brand new halt. In accordance with a subsequent replace, greater than 2/3 of the stake had upgraded to the subsequent repair, and the community resumed. GNcrypto famous that block manufacturing throughout this era was paused for about 3 hours and half-hour.Might 29, 13:57 PDT: The third disruption appeared through the epoch transition. Sui Standing acknowledged that validators had been nonetheless ready to finish the epoch change and had been solely processing system transactions, whereas person transactions weren’t but accepted.Might 29, 19:32 PDT: Sui acknowledged that the community had superior to epoch 1143 and was again on-line. Nevertheless, validator participation was nonetheless marked as degraded on Sui Standing.
Technical Trigger
Sui acknowledged that the incidents on Might 28 and Might 29 had been associated to the interplay between the v1.72 launch, the Handle Balances function, and the brand new fuel calculation logic. Following the halt on Might 29, the undertaking stated the earlier momentary patch had a low-probability challenge that would trigger the community to proceed halting transaction processing earlier than validators deployed a long-term answer.
Sui mainnet is again on-line and transactions are flowing usually.
The top of epoch halt was triggered through the rollout of yesterday’s long-term repair. As validators restarted to deploy the brand new binary, the randomness initialization that runs at the beginning of every epoch was unable…
— Sui (@SuiNetwork) Might 30, 2026
The third disruption occurred through the epoch transition whereas validators had been rolling out the long-term repair. In accordance with Sui, a bug through the randomness initialization at first of the epoch, mixed with the best way the error state was retained throughout validator restarts, prevented the community from finishing the transition to the subsequent epoch.
Sui has not but printed a full postmortem, so there may be presently no foundation to conclude whether or not this collection of disruptions is a safety flaw or a long-term design challenge of the community.
Market and Person Influence
The collection of halts meant that person transactions on the Sui mainnet may very well be delayed or unconfirmed, affecting token transfers, swaps, deposits, and asset withdrawals from DeFi functions. The clearest impression appeared when validators solely processed system transactions whereas the community waited to finish the epoch change.
SUI value chart (4h). Supply: TradingView
On the time of recording, SUI was buying and selling round $0.090-$0.92 whereas the mainnet incidents had been being extensively mentioned. DeFiLlama knowledge confirmed that Sui had roughly $527.91 million in TVL and $459.25 million in stablecoin market cap, reflecting the dimensions of the ecosystem that may very well be affected when the mainnet experiences consecutive disruptions.
This incident occurred simply over per week after Sui introduced gasless stablecoin transfers on Might 20, a protocol-level change that permits customers to switch sure supported stablecoins with no need to carry SUI to pay for fuel charges.
What to Watch Subsequent
After three disruptions inside 48 hours, the difficulty with Sui is not only a technical bug but in addition the reliability of the community as a settlement layer for DeFi and stablecoin funds. The consecutive collection of halts will draw extra consideration from the market and builders to how Sui exams releases, coordinates validators, and handles errors whereas the mainnet is working.
Within the speedy time period, the purpose to look at is when the “Mainnet settlement” incident is marked as resolved on Sui Standing and validator participation returns to a totally operational state. Subsequent updates from Sui or Mysten Labs, if any, can even function a foundation to evaluate whether or not the community will change its rollout course of after the incident.
As soon as the community stabilizes, TVL, DEX quantity, and stablecoin switch exercise will present whether or not the incident has an enduring impression on liquidity and utilization on Sui.
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