In the spirit of iteration and continuous improvement, after hitting a significant or repeated issue, we should write an unscheduled post-mortem and share it with the team.
This should take 5-10 minutes to prepare.
Following the resolution, the person with the most knowledge of the issue should send an email to the group with the following summary:
What was the issue?
What might be done to improve our outcomes in the future?
What are we changing in our process and/or documentation (if anything) to improve future outcomes?
By taking a moment to reflect, we have the opportunity to uplevel, and create lasting change and improvement.