Arbitrum Temporarily Stopped Processing Due to Software Bug

The Ethereum layer 2 network went out of service for several hours due to a bug in the sequencer and a resulting transaction backlog that stressed the network. A fix was deployed and the network is now processing again.

(Danny Nelson/CoinDesk)

The Arbitrum blockchain suffered from a bug in its software Wednesday that caused the network to stop processing transactions on-chain for several hours.

There was a bug in Arbitrum’s sequencer, “responsible for taking user transactions, creating a batch of the transaction, and posting it on-chain,” according to the Arbitrum developers’ official Twitter account.

The software bug “created network stress caused by the large backlog of transactions which hadn’t been posted on-chain,” wrote Arbitrum Foundation’s community lead, who goes by the username “eli_defi,” on Discord. “A solution has already been deployed earlier today, and everything has been operating as it should.”

ER June 2026 Image

CEX trading volumes rose for the first time in five months in June, with spot climbing 15.3% to $1.11T and RWA perpetual volumes surging to a record $311B.

Why it matters:

CEX trading volumes rose for the first time in five months in June, with spot climbing 15.3% to $1.11T and RWA perpetual volumes surging to a record $311B.