Quick answer: The biggest postmortem mistakes are blaming people, not finding the root cause, no action items, and not using data, fix these by staying blameless, finding root causes, and using captured data.
A postmortem after an incident should make you better, but common mistakes waste it. Here are the most common postmortem mistakes and how to avoid them.
Blaming Individuals
A common postmortem mistake is blaming individuals for an incident rather than examining the systemic causes (the process, tooling, or conditions that allowed it). Blame discourages honesty and misses the real, fixable systemic issues.
The fix is a blameless postmortem focused on systemic causes. Bugnet provides the objective data, what happened, when, what the captured crashes show, so the postmortem can focus on the facts and systemic causes (was there a monitoring gap? a missing gate?) rather than assigning blame.
Not Finding the Real Root Cause
A second mistake is stopping at the surface cause rather than digging to the real root, so the postmortem addresses a symptom and the underlying issue recurs. A shallow postmortem does not prevent recurrence.
The fix is digging to the root cause, using the data. Bugnet's captured crashes, per-version data, and timeline help you trace what actually happened and why (the release that caused it, the crash that drove it), so the postmortem finds the real root cause rather than stopping at the surface.
Producing No Action Items
A third mistake is a postmortem that analyzes but produces no concrete actions, so nothing changes and the same kind of incident recurs. A postmortem without follow-through is just a discussion.
The fix is producing concrete action items, often improvements to monitoring, gating, or process. Bugnet helps you implement the common ones, better per-version monitoring and alerting (to detect faster next time), gating (to catch bad releases), so your postmortem's actions translate into real safeguards.
Avoid the big postmortem mistakes: blaming people, not finding the root cause, no action items, and not using data. Stay blameless, find root causes, and use captured data.