Transaction not yet indexed

21Ca3s5V5Ga3Fsib4RFsEfB5QcoC5SvG5wRf9krCsg4h2d5Kt7eWRXyktUkqiQjtGJCcxKpyKPHFPBKRoKqSsCCc

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