Sui Network Hit by Second Major Outage of 2026 Weeks After African Expansion, Resumes Operation

What To Know:

• The Sui blockchain suffered another major outage, temporarily halting transaction processing across the network.
• The incident comes just months after a previous six-hour network stall earlier this year.
• The outage comes as Sui pushes deeper into real-world payment infrastructure, including a recent partnership with Nigerian fintech company Paga focused on cross-border payments in Africa.

The Sui blockchain is back online after a nearly six-hour outage on Thursday, the 28th of May. This marks the second major network disruption in 2026. 

Mysten Labs network first flagged the problem after alerting users that its mainnet had entered a “network stall” and that transactions were paused while engineers investigated.

By late Thursday, the team confirmed and announced on X the cause of the stall: a crash bug in the gas-charging logic introduced by the network’s 1.72 software release. The outage lasted approximately five hours and 55 minutes before operations resumed.

In January, a separate bug kept the Sui network offline for more than six hours. In November 2024, transaction processing was paused for about two and a half hours. The cause was later identified as a validator crash loop. 

SUI Ambition Meets Infrastructure Reality

When Sui launched its mainnet in May 2023, it pitched a network built on speed and scalability. It was an architecture purpose-built for financial applications.

The network launched with an object-centric design and parallel execution engine. In theory, this allows multiple tasks or transactions to be processed simultaneously rather than sequentially. 

Outages, like the one on Thursday, however, have shown that the same sophisticated infrastructure that enables that performance can introduce new failure points.

For each of these incidents, the network has halted safely, announcements made via X or Sui’s status page while a fix or upgrade is coordinated. Operations resume shortly after.

The Sui team has promised to release a full incident review in the following days. 

The outage didn’t only affect users; it also affected the SUI token’s value. SUI token value dropped about 6% on Thursday following the disruption. 

Following service restoration, it partially recovered and was trading at $0.92 at the time of publishing. It has fallen more than 82% from its all-time high of $5.35, set in January 2025.

A Major African Fintech Partnership Raises the Bar

The outage might have registered as a footnote in a busy news week were it not for what Sui has been building toward.

Just three weeks ago, at the Sui Live event in Miami, Nigerian fintech Paga announced a formal partnership with Sui.

The announcement was made by Paga Group CEO Tayo Oviosu, who said, “Through this partnership, Paga and Sui are working towards a day when Africans have the freedom to work globally, invest globally, bring their creativity to life for the world, live the lives they want, and thrive.”

Adeniyi Abiodun, Co-founder and CPO at Mysten Labs, echoed the sentiment. “Africa has a vibrant developer ecosystem, entrepreneurial drive, and increased interest in blockchain technology. This partnership is ready to meet that demand.”

In 2025, Paga processed an estimated $11 billion in payments and facilitated 169 million transactions. Paga has handled over $44 billion in total volume since its 2009 launch. The company serves millions of consumers across the continent through three business lines: Paga, Paga Engine, and Doroki. 

Under the partnership, Paga intends to integrate Sui Dollar (USDsui), Sui’s native stablecoin, which was announced in November 2025 and launched in March 2026. 

The stablecoin launched with a 1:1 peg to the US dollar, with plans to build cross-border payment rails on Sui’s blockchain infrastructure.

The goal is to address the structural barriers to financial participation that Oviosu described. Remittances and cross-border transactions across the continent are slow and expensive. Currency instability erodes people’s savings, and access to global financial products is limited.

That is the problem Sui is now promising to help solve. However, outages factor into its ability to solve that problem.

Payment Infrastructure Demands a Higher Standard of Reliability

A multi-hour outage is disruptive but recoverable for a network primarily serving crypto traders and DeFi protocols. Users experience delays, lending protocols temporarily suspend deposits and withdrawals as a precaution, and the SUI price dips. Once service resumes, activity normalises.

The expectations for payment infrastructure, especially in the remittance space, differ. Cross-border money transfers are often time-sensitive. A payment that fails to settle during a network stall is more than inconvenient. For individuals sending money home to family, or businesses conducting international transactions, timing and reliability are the product itself. 

Neither Paga nor Tayo Oviosu has commented publicly on the outage or its implications for the partnership at the time of publication. Sui has promised a full incident review in the coming days.

Solana Survived Its Outage Era. Can Sui?

It might be tempting to dismiss Sui’s ability to fulfil their goals and secure their spot in the network conversation. However, it is worth noting that Solana faced similar challenges in 2021 and 2022. 

Solana endured a prolonged period of outages and performance incidents in 2021 and 2022 that raised serious doubts about whether the network could serve as a reliable infrastructure. It has since stabilised considerably, and its developer ecosystem and institutional adoption have grown substantially.

The question is not whether Sui can recover from individual incidents; it clearly can. Do high-performance Layer 1 blockchains face an inherent tradeoff between pushing the boundaries of throughput and maintaining the kind of operational consistency that financial services require? That’s the question. 

Speed and stability are not necessarily in conflict, but building toward both simultaneously, at scale, with real money on the line, has proven difficult across the industry.

Sui is still early in that process. Whether the Paga partnership succeeds may depend in part on how quickly Mysten Labs and Sui can close the gap between the network’s performance ceiling and its reliability floor.