Transaction not yet indexed

21f4qmXjJzCfYGWSJos4qm8cWq4hnRHN8RvTjPcUfAs1Kz7wYQZWfPerASnRrdFxEBdmLfCMQTS8MT6AU8Umsje8

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