Transaction not yet indexed

MdNc8QKQTPHVdx4xJLRwsPgCAwx5Hz3XfASSUjDA8tcFQgVC63foKgRERhHZx5878LjgZ4PLP6RCdbuJuzCcjkZ

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