The group by is getting rid of some of the rows?
SELECT *, bp.product_id
FROM builder_product as bp
JOIN builder_step as bs
    ON bs.builder_id=bp.builder_id
JOIN builder as b
    ON b.builder_id=bs.builder_id
WHERE b.business_id = '60'
GROUP BY product_id
ORDER BY bs.step_number

SELECT
  bp.*,
  bs.name
FROM
  builder_product bp
  JOIN builder_step bs ON bp.builder_step_id = bs.builder_step_id
  JOIN builder b ON bp.builder_id = b.builder_id
WHERE b.business_id = 60

SELECT bp.*, bs.*, b.*
FROM FROM builder_product as bp
INNER JOIN builder_step as bs ON bs.builder_id=bp.builder_id
INNER JOIN builder as b ON b.builder_id=bs.builder_id
WHERE bp.product_id IN
  (
  SELECT bp1.product_id
  FROM builder_product as bp1
  JOIN builder_step as bs1 ON bs1.builder_id = bp1.builder_id
  JOIN builder as b1 ON b1.builder_id = bs1.builder_id
  WHERE b1.business_id = '60'
  GROUP BY bp1.product_id
  )
  AND b.business_id = '60'
ORDER BY bs.step_number