# Nitro Related Articles

Arbitrum Sepolia stalls for hours as Nitro issue halts block production

Arbitrum's Sepolia testnet experienced a partial outage, halting block production for several hours due to a suspected issue in its core Nitro infrastructure. The team identified a potential block divergence—where nodes disagree on the chain state—and temporarily paused operations to prevent inconsistencies. No new transactions were processed for 3–4 hours, effectively stalling the network. Developers were advised to pause time-sensitive testing and use alternative environments. The team emphasized that no user funds were at risk, as the issue was confined to the testnet. A new Nitro release is expected to resolve the divergence and restore normal operations.

ambcrypto03/23 22:04