Transaction not yet indexed

NFkkLRg561ZpTZsZtLPf9bUcAVAYE1LoMtC9Y3a3mGjJyVjeZCj2pXBBV51oaGJsAGdTMyzMhTmNvbPU7ufkPBJ

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