Transaction not yet indexed

21pfkUB1aBAKoCsFkVJrW6k6RVrTqqYZEDhjeb1DAGo2AcSfWuzGoQwZ9V6tswbDAs5CReaYEx3U55WJV9H9o7xG

The transaction signature is valid but not yet indexed by this RPC node, or the transaction failed before inclusion.