Transaction not yet indexed

1ffnTnNSBGkYwybkm8eDjwH2VZrT6KGbKc9enHKXcmToKZms66iVNnwyXVxTBDfWWPBAqZpsKoS5bmj6WFKYBvg

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