I have WP Rocket installed
Before whitelisting the following COOKIES, please make sure to remove UTM query strings from our ignore list. And then continue with the following. You can do this by installing and activating the following small plugin.
If you have WP Rocket installed, you need to go to "Advanced Rules" and put the following entries under "Never Cache Cookies" section.
utm_campaign utm_source utm_term utm_medium utm_content gclid first_utm_campaign first_utm_source first_utm_term first_utm_medium first_utm_content handl_original_ref handl_landing_page handl_ip handl_ref handl_url organic_source gaclientid
After this is implemented, make sure you start with a clean cache (incognito preferred) or hard refresh your browser and test again. It should work.
Still having problems? Let us know, clicking the chat bubble at the bottom right of the page.