Transaction not yet indexed

RMkifrLLrGfgvC8TQ18FxC6HSCj2hnWvVism2j6Sg6RfSVjKrGJkCQk8VgrRWx5ykka5QbD6MCcxFEJYBQXpdV9

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