Transaction not yet indexed

667tAEVMp3ksZgevg4bUFaX8bYRvGuBYnyRniP81WfW8TQBCVTnrxjQXdMfvHq2JvPTaQu4JSikdSmffYQLPSPM4

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