Hi @nour,
When using the “Issue” dimension on report rows we recommend avoiding the “All Issues” member.
If you would like to have individual issues on report rows, you might want to select already Issue level (see picture below). Do the same for the “Linked Tests” dimension. The “Nonempty” would work more efficiently.
You may also add the “Time” dimension as a page filter to filter defects by their creation date.
Here are more recommendation on how to build more efficient reports: Best practices for report creation - eazyBI for Jira
Best,
Zane / support@eazyBI.com