WC result count and filter products count

From v3.1.0 to v3.3.0 I found two main problems:

1) WC result count, for instance in the category page, doesn’t update. It just desappears after a click on a filter. I mean that the:

$(response).find(yith_wcan.result_count).length

is 0 so the script doesn’t run the .show(). The class in the settings is correct.

2) In the sidebar, filters are without the products count (both before and after click on a filter).

I tried with the suggested procedure in:
https://www.ads-software.com/support/topic/filter-not-working-in-categories/

but with no luck. Any other suggestion? By using v3.0.12 everything seems to work correctly.

Note: I’m updating a local version of my website (by using MAMP), so I can’t give a link.

Thanks for any help.