Hi Madam, It is still the same. Not fixed
I think you make a filter when you are on a category page, so that page has the same header as all oter categories and the style remains the same however if you make a filter on products page (below link) which has different header and it will mess it up.
https://test.npaplast.se/alla-produkter/
Also If you could add an option in your theme so that i could enable header for search result page too then i dont need to change the woo.php file bcz currently you cannot add header to search result page. I will see if i can get the function out into the child theme function.php.