Hi, we are using these APIs https://developer.atlassian.com/cloud/jira/platform/rest/v2/api-group-issue-search/#api-rest-api-2-search-get
To get date/time when an issue was created, updated, or commented.
To get the audit log for Jira Cloud
However, noticed that initially we had large number of NULL activity and suddenly we see the activity is stamped with a date. What could be the reason for this Null activity? Also some of these users had activity but we still report it as Null.