Transaction not yet indexed

21m6DYSiGKkGQu6Wa4n6nq95fehtj9hbSCS2iwmhsCZVtAF53CLYuPbp96RbQA9XTBA4xzzRFeSMFDRxsiNhsKkN

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