Events are not displayed in "Description" tab

The expected behavior is that the "Description" tab should display a timeline with all events (creating CRs, adding new changes, changing status etc.). However, some Change Requests don't show any events in the "Description" tab, even though multiple changes were made.

The issue can be observed on https://www.xwikiorg-node2.xwikisas.com/xwiki/bin/view/ChangeRequest/Data/Creating-a-subpage-for-a-Re-2f6bcd08-3395-4b30-bbd9-c888220bf0ad/ or on https://www.xwikiorg-node2.xwikisas.com/xwiki/bin/view/ChangeRequest/Data/Creating-a-subpage-for-a-Ho-eadef661-8738-43cb-a9f0-0ff46ffa4bb4/.