Your question is Solving Recurring Technical Problems. 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).
Describe a situation where you had to dive deep to solve a recurring technical problem.
Explain how you separated symptoms from the underlying cause, what evidence and tools you used, and how you verified the fix. Include how you prevented the issue from returning.
Keep the answer focused on your investigation, technical reasoning, and follow-through rather than general teamwork or project background.