Your question is Debugging State Management. 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 how you would approach debugging a complex state management issue in a front-end application.
Explain how you would isolate whether the problem comes from state ownership, asynchronous updates, derived state, stale closures, or unintended side effects. Describe the tools, instrumentation, and small code-level checks you would use, using React and Redux-style patterns where helpful.