After applying a filter widgets are not updated or is not carried out the recount of terms or disappears after a filter applied
Many users complain that they do not see the filter or reset the widget list is not updated, the problem in most cases is this:
The problem is in the before_widget arg in register sidebar settings. The correct way to register a sidebar is: 'before_widget' => '<li id = "% 1 $ s" class = "widget% 2 $ s">', with id and class params, like you read in the WordPress Codex . Your theme use only classes and not the id..
Please, look here: https://codex.wordpress.org/Function_Reference/register_sidebar
That amends must do the theme developer otherwise the first update will lose all changes.
We advise you to check the configuration of the tab frontend here
If you have problems to solve, please open a ticket on our support platform and attach your credentials and your theme. We will be happy to help you.