Hello,
I have detected that this filter doesn’t detect product’s attribute listed in the archive page. I have added the default Woo filter too only to show you the error as simple as I am able.
Please, find details and examples in private field.
If you needed change the template you should advice me before do it. But, in my opinion, the issue is caused by the widget programming.
Let me know if you need anything else.
Regards,
Javi.