The issue you’re experiencing might be due to Google Analytics not being able to instantaneously reflect changes made in your customized reports. When you add a new dimension like “Link URL”, the system might need some time to gather and reflect that data. This is more evident if your website has high traffic or numerous Landing Pages. It might be a good idea indeed to wait for a day or two and then check the report again. If the issue still persists, it might be worth checking whether you’ve correctly set the parameters for the inclusion of the “Link URL”. The fact that you’re seeing aggregated data suggests that data is being collected, but perhaps not displaying as expected due to how the dimension has been added or defined.