Your question is Resolving a Complex Issue. 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).
Give an example of how you have identified and resolved a complex issue. Explain how you recognized the issue, determined its root cause, evaluated possible solutions, and involved the relevant stakeholders. Focus on your specific actions, the result, and what you learned from the experience.