Your question is Hardest Challenge and Learning. 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 was the most difficult challenge in the previous work? How did you overcome the situation? What did you learn from that experience?
Keep your response focused on one specific challenge rather than describing a recurring difficulty. Explain the stakes, your personal responsibility, the actions you took, the outcome, and how the experience changed your approach. A strong response should use the STAR structure and distinguish your actions from those of the broader team.