Describe debugging approach for software issues

Describe how you typically debug an issue in a software application.

Include in your answer:

1. How you first narrow down the problem (reproducing the bug, gathering context, etc.).
2. What tools or techniques you use (e.g., logs, breakpoints, debuggers, tracing, tests).
3. How you decide where to focus your investigation in the codebase.
4. How you communicate progress and findings with your team while debugging a production or high-priority issue.