Your question is Pivot Architecture Under Constraints. 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 time you had to pivot an architecture due to unforeseen technical constraints or data quality issues. Explain how you identified the constraint, evaluated alternatives, communicated the trade-offs, and led the team through the change. We are looking for a specific example showing ownership, sound judgment under ambiguity, and the ability to protect delivery quality while changing direction. Structure your response using Situation, Task, Action, and Result, and include measurable outcomes and what you learned.