Resolved in: 4.4.11
Overview of the issue
When you set the Media (attachment) post type as Translatable – use translation if available or fallback to default language in WPML → Settings → Post Types Translation, the theme slider from WPEstate displays unwanted images from the media library in the translated property.
Our developers are working on fixing this issue. In the meantime, please set the Media post type to Translatable – only show translated items in WPML → Settings → Post Types Translation.