I have the same problem after installing 1.6.41
Strange enough search/filter in the backend -dutch- doesn’t work, but with the translated language (WPML) the search/filter works OK. I’ve contacted WPML support and the expert concluded that it’s not an WPML-issue. After deactivating WPML the Dutch part still returns empty – so he was right.
Theme: Twenty Seventeen 3.1
PHP: 7.4.32