Transaction not yet indexed

k91Ae8SrXiQmLZ2GzKdzfiN2zpFNUtQm8t4ht1fVrys7bWjUB7eKMgpEsUweWGNDApGKvSMhGtwAvbue2vzjEUG

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