The Ethereum layer-2 protocol Starknet faced a block reorganization issue, causing a transaction backlog and a four-hour outage in block production, as revealed by Starkscan, its block monitoring tool. On April 4, a gap appeared between the creation of blocks 630028 and 630029, while Starknet’s status page showed no reported outages. In response, Starknet issued a statement attributing the incident to a rounding error bug, clarifying that although block production continued normally, the reorganization led to a transaction backlog, hindering the network’s full capacity. The statement explained that for a brief period, new transactions couldn’t be processed and were rejected,