I've got a few automated email campaigns in Sitecore 9.0 Update-2 that I created from existing pages. I've noticed that if I modify the content or presentation of those pages, the automated emails do not send the latest content; rather, they send an older version of the pages.
Publishing makes no difference--the only way I've been able to get the automated email campaigns to send the latest content is by restarting Sitecore. Is there a cache that I need to clear somewhere?