Transaction not yet indexed

21FbKbmpC4ezq7PFQCQfyCXcBCVfqpfVQ4bkhkfgMCGhKiu5dtrPy7cvsGiBAoPSaoS3Mon3QxaDqwm2YtaUuSpv

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