Fireblocks rebuilds transaction handling to prevent queue stalls

If you’ve ever been stuck behind someone paying with exact change at a toll booth, you understand the core problem Fireblocks just solved. On EVM-compatible blockchains like Ethereum, transactions must be processed in strict numerical order using something called a nonce. When one transaction stalls, every transaction queued behind it just sits there, waiting. For an institution moving billions in digital assets, that’s not a minor inconvenience. It’s an operational nightmare. Fireblocks, the infrastructure platform that supports thousands of institutional clients processing trillions in digital asset transactions across more than 150 blockchains, has rebuilt its transaction handling system from the ground up. The goal: make sure a single stuck transaction can never again freeze an entire queue. What actually changed The overhaul introduces three major features that work together to keep transaction pipelines flowing smoothly. First, user-configurable timeouts. Institutions can now set custom timeout windows at both the workspace level and the individual transaction level. When a transaction sits unconfirmed past its deadline, the system automatically marks it as “FAILED” instead o...