Core answer
Start here. This is the direct spoken answer to practice first.
Why this question matters
This question separates responsibility from blame. A useful answer shows calm mitigation, honest communication, and concrete follow-up.
I was involved in a release where a validation change blocked a subset of users from saving a form. Once reports came in, I helped reproduce it with the affected role and payload, checked the browser response and API logs, and confirmed the new server rule was stricter than the UI expected. We mitigated by rolling forward a small fix that accepted the existing valid data shape while keeping the important validation rule.