Transaction not yet indexed

Mmi16ks3MZzjxZAe1qda4Xt8Wjo7PtMVbPbfa5Yh1y8SDK5x4vbpvSbCTv6FkZBPSQMz5rtbxSATE9fCtyAhTQU

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