Transaction not yet indexed

UFfZTM5JZ8aBUNXTKHL5VbwhRFLSxAJjmSihS1JJLvikHAMd2PLFa3Js1Q7uXhd4qyoFQYTXoCf4NiKzV5MN6Se

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