Transaction not yet indexed

NkJML7Wkk9QpUHV3cEQhfpbmAxtQZRSCRYmsdiFPnD7pVZzG7SdS8q37PV3m1BPsbbXwCXc52jJa2ucZeuL8Pz6

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