Search showing different results depending on language (missing results!)

Hi,

First off, love the plug-in, works faster and better than others I’ve tried. However, we do have a annoying problem right now with differing search results depending on language.

Our website has a default language of English, all articles have then been translated to Dutch. Now let’s say we have an article that has a name in it, eg. Thijs. This name is the same in both English and Dutch. Now, when we use the search function on the English webpage the results show this post (https://www.highhumans.com/?s=thijs), but when we use the search functionality on the Dutch webpage the results don’t show (https://www.highhumans.com/?s=thijs&lang=nl).

What is happening here? I already tried everything I could think of: deactivated plugins, basic theme, etc. nothing seems to work.

Please help.

Best regards,

Semmtex