The phrase "a certain challenging" is not correct in English.
It seems to be an incomplete or incorrect construction, as "challenging" typically needs a noun to follow it or should be rephrased.
Example: "She faced a certain challenge in her new role."
Alternatives: "a particular challenge" or "a specific challenge."
The effect is to maintain a certain challenge to normative liberalism, but on rather different terms than before.
Even Mr. Newport, who is a bit more restrained than Mr. Woodard, said that this year's South Carolina primary presented "a certain challenge to the survey scientist".
Though he feels a certain challenge raising children amid an idyllic backdrop of wealth and consumption, he is also surprised and delighted to be living among family, in-laws, friends and the children of his childhood friends.
Though "there is a certain challenge to building a business because you get to do something artistic and make a living at the same time," he said, he had the urge to resume his craftsmanship as a "noncommercial enjoyment kind of thing".
Explains Hadfield: "Some of the ways brands partner with us include Promoted Challenges, where a business can sponsor a certain challenge, which appears as a promoted hashtag.
As a result, the book directs a certain challenge to the reader to take up her role in the systematic advance towards the redemptive unity which Rosenzweig envisions.
This would pose a certain challenge for teachers, requiring them to collaborate with colleagues in their own institutions (being a little more complicated than if the learning outcomes all came from the same module).
The legacy players have old, client/server environments that uses services oriented architectures, making integration with next generation apps a certain challenge for the developer trying to unlock data behind firewalls and integrating such silo environments such as RedHat JBOSS, SAP Netweaver or an Oracle environment.
