Transaction not yet indexed

666NxMDML6DjAQH4Fvvu4KaWCEwytgCdMcrmcZTDi71F48XukSiHa3fuYjHWwLN1ENPj2rPLJzGCFCUG3SkffpcC

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