A bug in Arbitrum caused a short-term transaction failure

On June 7, Arbitrum promptly corrected an error in the sequencer mechanism, which led to a short pause in the execution of transaction packages on Ethereum.

Apparently, the error was in the on-chain package placement mechanism. When the sequencer tried to publish it to the network, an error occurred and the transaction failed.

For some time, the sequencer did not finalize transactions, but at the same time it performed other functions properly.