10/19 WPML Ticket: After updating from WPML Multilingual CMS 3.9.4 to 4.0.7, the images on the translated French page won’t show, but you can still see the images on the backend. Please see attached 3 screen shots.
After that, please go to WPML > Settings > Post Types Translation and check if the “Media (attachment)” post type is set as “Translatable – only show translated items”. Then scroll down to Media Translation apply the settings for the future media and run the scan for the existing content.
When you need to show images with content that you translated using WPML’s Translation Management, you should never edit that content manually using the WordPress “post editor.” If you do, your edits will be lost the next time you update this content using Translation Management.