Transaction not yet indexed

21fmmxZa91aN13eFuYQWoFcHjsuRku1nPKCj1Z9xEzBb44HCpXv8Dtvuw3e4GEtAF4eLdQ54MRW33RPNXZeUyHF9

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