Transaction not yet indexed

ZK6Mmphv9DJeEZ2NNa9DnuEbeS8gGdaLzhwLGeJC5ebr8HvV6ff281wo5W2SEPHMXfv9JStVsRDcSNP2TF4TRS4

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