Sui mainnet stalls nearly an hour after validator outage halts blocks; Core team works on fix
Sui mainnet halted block production and paused transactions for nearly an hour; the Core team is working on a fix [1][5][4].
The Sui mainnet experienced a network stall on May 28 that stopped producing blocks and paused transactions for nearly an hour, according to official notices and community reports [1] [2].
Explorer timestamps and Sui’s status page indicated the outage primarily affected validator settlement activity and disrupted mainnet settlement, while industry coverage noted this is the second Sui network outage so far this year [3] [4].
Sui’s Core team said it was actively working on a solution and investigations were ongoing at the time of reporting; the incident renews concerns about the network’s reliability and potential impacts on user confidence if stalls recur [1].
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Citations
Follow the primary reporting behind this analysis. Click a citation to open the referenced source in a new tab.
- 1The SUI blockchain has been offline due to a major outage for almost an hour.r/CryptoCurrency• May 28, 2026
- 2Sui validator outage disrupts mainnet settlementAMBCrypto• May 28, 2026
- 3Sui blockchain suffers another network outage as transactions grind to a haltCoinDesk• May 28, 2026
- 4SUI Mainnet experiences network stall as Core team works on fixCrypto Briefing• May 28, 2026
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