Key Highlights
- Sui mainnet is experiencing a stall, halting all transactions and apps on the network.
- The core team has confirmed the issue and is working on a solution, but no timeline has been provided.
- On-chain activity is paused, leaving submitted transactions unprocessed and causing delays across wallets, exchanges, and decentralized applications.
The Sui blockchain mainnet is currently facing a major network stall that has reportedly paused transactions across the ecosystem.
The issue started on January 14, 2026, and has affected users as well as apps like Slush and SuiScan. In an X post on Wednesday, the Sui core team confirmed the issue, stating that they are actively working to resolve it and that they will give updates when possible.
Network operations and transactions halted
The stall has caused block production to stop completely, meaning no new checkpoints or blocks are being created. As a result, all on-chain activity has paused, and transactions are waiting without being processed.
Users trying to send or receive tokens are seeing frozen interfaces and failed requests, while apps that depend on real-time are displaying delays and not responding at all.
Network explorers tracking Sui have confirmed that no new checkpoints have been generated for more than an hour, indicating that the consensus system, which ensures all validators agree on transactions, is stalled. Until new checkpoints are made, the blockchain cannot update, and scheduled activities are paused.
Popular apps like Slush, a DeFi platform, and SuiScan, the network’s main explorer, are reporting slow performance and some temporary outages. Wallets and exchanges are also affected, with longer confirmation times, but users’ funds are safe.
Core team working on a fix, no timeline yet
The Sui core team first confirmed the stall on Wednesday. The team stated that engineers are working to stabilize the network, but no timeline for a full recovery has been shared yet. The root cause has not yet been disclosed, and users have been advised to avoid critical transactions to prevent any problems.
The Sui network uses parallel transaction processing, which is a system where multiple validators handle transactions at the same time. While this system usually speeds up the network, it appears to be facing coordination issues, which seem to be contributing to the slowdown.
Despite the network disruption, the SUI token has shown limited market reaction. The token is currently trading around $1.84, up 1.22% in the last 24 hours. Trading activity is up by 75% today, resulting in $1.32 billion in trading volume, according to CoinMarketCap.
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