Transaction not yet indexed

5S21acfcXnUcXDnuKPDtFpqqt3R2HF83vDQ7qTtQJYNx38B9ZSmUJyGfcHW8MnoHHQddXuLtcodtJaQEqxAWLxYY

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