Transaction not yet indexed

NB6fpzjJkVbP3yFW3iR6KTChuCSHq3USMEUe6aXVsx6f2j3LujZBQxtYjF7P1kFdv2FGD5K4YWBzzV3vSijYpW4

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