On March 25, 2021, options to set new Reports & Analytics dashboards or other content as your Adobe Analytics landing page is removed. If you previously set a Reports & Analytics page as your custom landing page, it will continue to work until your landing page is modified in User Preferences. You can find about this change here in the latest release notes: https://experienceleague.adobe.com/docs/release-notes/experience-cloud/current.html?lang=en#appm