The main card photo for a property on your website, also called the featured image, can show an older image than the cover or main photo set in your PMS.
Why this happens. The featured image refreshes when the property’s photos are re-imported from your PMS.
What you can do. A full re-sync of the site brings the photos up to date. If you have admin access, you can trigger this from the plugin’s Sync page. If you do not have admin access, contact support to have the re-sync run for you.