Woofun AI reports that Coinbase's Layer 2 network Base experienced two block production failures last week, attributed to vulnerabilities in the sequencer's block construction logic. The flaw allowed outdated log states to persist after transaction validation failed, halting processing until sequencing resumed. The initial incident lasted 116 minutes, followed by a 20-minute outage caused by a race condition post-reset. The team has deployed a patch and plans to enhance fuzz testing and recovery mechanisms.