Transaction not yet indexed

66Mbq15CeGnXigwsuo4vGCF11eofWuxpKBcNbTwx5JVySQmsbX4uz8CxUdHTYYZNTZdF2Zdnb2RF7Bqp6xJY6Sz4

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