Query gives correct answer on second run

I have the query

SELECT * FROM
(
    SELECT sort.*,
    (
        CASE concat(question_id,`type`)
        WHEN
            @curType 
        THEN
            @curRow := coalesce(@curRow,0) + 1
        ELSE
            @curRow := 1 AND @curType := concat(question_id,`type`)
        END
    ) + 1 AS rank
    FROM 
    (
        SELECT a.* FROM
        ul_attempt_responses a
        LEFT JOIN us_attempts b ON a.attempt_id = b.id
        WHERE b.user_id = 3
        AND response IS NOT NULL
        AND trim(response) != ''
        AND b.authenticated = 1
        ORDER BY question_id, type, id DESC
    ) sort
) final WHERE rank = 2;

On my local machine, when the query is executed twice, that is when I get the correct response. But on the Production Server, it works on the first time.

What could be the problem? Is there a problem with the query.