Visual Composer language

Hello. You use Visual Composer plugin intergrated in your theme, but there is a problem with its translation. The folder js_composer contains a folder “locale” with several languages, but visual composer does not switch to this languages. But it does if to install Visual Composer separate plugin, which contains the same folders. How to fix it?
Several questions about Visual Composer:
When will it be updated? Is it possible to install 4.4.2 version now, if I have purchased it separately?