Also having this problem. Sub categories filter is not working with pagination.
Category gets stripped out in:
website.com/aco#/categorias-aneis/cor-dourado/page-3
The final url becomes:
website.com/aco#/cor-dourado/page-3
Updated module and theme js/template overwrites. Disabled all caches. Rebuild module url and attribute indexes.
No errors in js or php side. Any clues? How can i help?