[Решено] Featured images not duplicated to translations (Advanced Translation Editor)

Background of the issue:
I'm using WPML to translate everything automatically on my website скрытая ссылка. I tried enabling the Media translations add-on but since the images don't need to be translated, I deactivated it again. I also checked the WPML settings but can't find any media-related options.

Symptoms:
Featured images are not duplicated to translations when using the Advanced Translation Editor.

Questions:
How can I ensure that featured images are duplicated to translations without using the Media translations add-on?
Where can I find the media settings in WPML to manage image duplication?