This is a bad, bad, question because it doesn't structure the response towards learning about the candidate's thought processes and pre-stages the context of their response as a value judgment.

At best, you'll get a narrative about a specific project context and the candidate's actions which resulted in "failure". At worst, you'll get a disingenuous canned response from someone trying to game the interview and frame the chosen scenario as "success".

A better phrasing would be:

"Please tell me about a project experience when a plan, scenario, or design didn't unfold as originally intended."

The candidate can frame their response as "success", "failure", "improvisation", etc. and this opens up avenues to explore their thought processes, strategy, and 'leadership style' when responding to novel scenarios. This is also an opportunity to weigh the candidate's level of disclosure and frank communications as to what sorts of value judgments they, themselves, apply to the chosen scenario and their qualitative reactions to it.