Sui Network Hit by Third Transaction Halt in 48 Hours

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 triggered the community to briefly reject person transactions. Based on updates from Sui, the incident occurred following a sequence of patches associated to a gas-charging logic bug within the v1.72 launch, elevating issues in regards to the stability of this Layer-1 as DeFi and stablecoin actions on the community proceed to increase.

By the top of Might 29 PDT, Sui acknowledged that the mainnet was again on-line and transactions have been being processed usually. Nonetheless, 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 Status recorded the “Mainnet settlement” incident and acknowledged that the mainnet was experiencing a disruption whereas the Sui Core group 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 almost 6 hours.
• Might 29, 08:43 PDT: Sui continued to document a brand new halt. Based on a subsequent replace, greater than 2/3 of the stake had upgraded to the following 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 have been nonetheless ready to finish the epoch change and have 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. Nonetheless, validator participation was nonetheless marked as degraded on Sui Standing.

Technical Trigger

Sui acknowledged that the incidents on Might 28 and Might 29 have been associated to the interplay between the v1.72 launch, the Deal with Balances characteristic, and the brand new fuel calculation logic. Following the halt on Might 29, the undertaking mentioned the earlier momentary patch had a low-probability concern that would trigger the community to proceed halting transaction processing earlier than validators deployed a long-term resolution.

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 first of every epoch was unable…

— Sui (@SuiNetwork) May 30, 2026

The third disruption occurred through the epoch transition whereas validators have been rolling out the long-term repair. Based on Sui, a bug through the randomness initialization in the beginning 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 following epoch.

Sui has not but printed a full postmortem, so there may be presently no foundation to conclude whether or not this sequence of disruptions is a safety flaw or a long-term design concern of the community.

Market and Person Influence

The sequence of halts meant that person transactions on the Sui mainnet could possibly be delayed or unconfirmed, affecting token transfers, swaps, deposits, and asset withdrawals from DeFi functions. The clearest influence appeared when validators solely processed system transactions whereas the community waited to finish the epoch change.

SUI worth chart (4h). Supply: TradingView

On the time of recording, SUI was buying and selling round $0.090-$0.92 whereas the mainnet incidents have been being extensively mentioned. DeFiLlama information 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 could possibly be affected when the mainnet experiences consecutive disruptions.

This incident occurred simply over every week after Sui introduced gasless stablecoin transfers on Might 20, a protocol-level change that enables customers to switch sure supported stablecoins without having 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 sequence of halts will draw extra consideration from the market and builders to how Sui checks releases, coordinates validators, and handles errors whereas the mainnet is working.

Within the instant 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 a long-lasting influence on liquidity and utilization on Sui.