Midrub has now a new Faq Article section which supports multilanguage articles and categories. The core of the FAQ section was rewritten from scratch and now it looks more professional. From admin you can create a list with categories and subcategories. Than with a click you can select the categories for each Faq article.
The Faq section provides support for any number of languages you have. For each language folder, you will see new inputs and the articles for user will be in the selected language. Same for categories.