Given the following scenario:

Article A (let's say contentID 15) has two representations, A_en and A_fr representing different languages.
If a french user is surfing on eZ publish and clicks on some article B_fr, it may be possible that he gets A_en presented instead of A_fr as a recommendation.

It must be guaranteed that dependent on the siteaccess/language the language specific article is presented.
If the content is not available in the selected language, it must be configurable in the extension to use either

• the main language content or
• do not display the recommended content if the desired language is not available.

Some example is given here:
http://ezpublish.yoochoose.net/ezpublish5/ezpublish_legacy/index.php/ger/Getting-Started/Selected-Features/Create (see german article on the bottom of recos 'Optimiere')
and
http://ezpublish.yoochoose.net/ezpublish5/ezpublish_legacy/index.php/eng/Getting-Started/Selected-Features/Create (englich version 'Optimize')

So basically it seems to work but in the german siteaccess ONLY german content should be displayed.
The ShowUntranslatedObjects is disabled in the site.ini of the german siteaccess (see shot)