Transaction not yet indexed

MLkRRu5iYLJuFRvSrRE8LdTd4eaY8st5wpF8w3HdH7ZJbb98jZNjfGfmnsUPRt8vnf9cscN4rxrN8u8pEd7ZZT6

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