Transaction not yet indexed

MkuMPsC4QB2yAMBusLayfQYbAzwRfcxk6sCikuSKRFPmXXXSpZQhJ8S4sur8pawUABbjSiayvWba8KSneHpVSR9

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