Transaction not yet indexed

661Za251qvRFcbzcm9AmfkEZo7t6AcPdb3gp5wYJdEQG9JjQNiqibnLLUNSfqeHowqLpz4EYXZPKnMTkHwzHZTQA

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