Your question is Biggest Professional Mistake. Take a moment with it on the right.
Talk me through your thinking if you like. When you're confident, submit your answer and I'll grade it like a real screen (7/10 or better passes).
What has been the biggest professional mistake of your career, and what did you learn from it? Choose one specific example where your judgment, communication, prioritization, or leadership contributed to an unfavorable outcome. Explain the situation, your responsibility, the actions you took to address the mistake, the result, and how you changed your behavior afterward. We are looking for ownership rather than blame, meaningful self-reflection, and evidence that the lesson has influenced how you lead or make decisions.