Cache issue with filter menu

[trouble2]

So we're using the filter module but as it says so in the documentation it has an issue with the categories:
https://doc.openstore-ecommerce.com/#11579

When I go to a certain category, like /webshop/catid/123/category1 it will show the correct filters.
However when I go to /webshop/catid/456/category2 it will still show the same filters, but they do not apply to category2.
So when I refresh the page a minute later, it wil show the correct filters.
It looks like the filters are cached for a certain amount of time, and they do not look at the catid parameter .

Is there something I can do about this?