Hello Ernest Marcinko ,
After lots of trial & error and updating to 4.18.3 I finally found the cause of this 🙂
In my last ticket a month ago we tried to automaticly hide categories that have no pages / posts connected in the filter. You can read about it here: https://wp-dreams.com/forums/topic/hide-empty-categories/
There we used your custom filter in our functions.php to hide unused categories.
However this filter interupts / overwrites the settings I’ve tried to make now (hide a certain category).
Will this mean I could only have automatic hiding of unused categories OR hiding a specific category now? 🙂
Kind regards