Transaction not yet indexed

21Scp5wRfoYsdpRLuUogupf95HDPKKTRRNkdYqQMAPuUCNaMMPME4Gc23XoEKfRa7SMcDjYDZErarKAAASewQRN8

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