Welcome to your interview.
The question is on your right: Debug Training to Production Gap. Take a moment with it first.
Talk your thinking through with me if you like - when you're confident, submit your answer and I'll grade it like a real screen (7/10 or better passes). Discussion and graded submissions share your five interviewer interactions, so spend them well.
You've shipped a model that looked strong in offline training and validation, but it is underperforming in production. The team wants you to figure out why the offline results did not carry over.
How do you debug a model that looks good offline but fails in production?