Transaction not yet indexed

21MKhS7ffUdg6wR1tyX1mvHvJChY63dDwiTe2bfh12amhB6bhYpYxKBvwVzfVCCETSMJpuRPzPfMXhK1dEFykjkq

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