Transaction not yet indexed

21d6YttQL8YJSrn4oULJazj2xF8j5uGkoz19qRcfVqRUonZ5nacz5TVhHrRV1xff3h56nEMA6fFAL73chgPZqcKB

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