Urna Product by page

Hello,

We have a issue with the paginating page when we navigate on a categorie shop page.

for example, if we set in the theme setting = 20 products by page, once we click on the link menu of a categorie, it works well. Once we start to use the page, the number of product change and switch to 10 product by page,
It looks it is related to woof filter plugin but i was not able to find a way to change the number of product in woof plugin to match the correct number inside theme setting of urna

Thx for your help

Can you please help me