Now we check the Relevant events section, which lists potential triggers for the issue. The events listed here depend on the set of operations carried out on this CloudFormation stack’s resources in this Region. This makes it easy for the operator to be reminded of a change that may have caused this issue. The dots (representing events) that are near the Insight start portion of timeline are of particular interest.
If you need to delve into any of these events, just click of any of these points, and it provides more details as shown below screenshot.
You can choose the link for an event to view specific details about the operational event (configuration change via CloudFormation update stack operation).