Reported for: WPML SEO 2.1.0
Overview of the issue
If you are using any of the advanced meta fields from the Yoast SEO plugin, such as Meta robots advanced, you will see that the setting isn’t synchronized to your translations.
Our developers are already aware of this situation. In the meantime, you can make a change to the advanced settings in your default language post and click on the WordPress Update button twice. This will apply the updated setting to your existing translations.