I have problem with some checkboxes on XStore theme.
To replicate issue you can go to the shop page of my website here https://www.blsfashion.com/shop and check some brand filters here http://joxi.ru/xAevdB5SR4OvQr and than uncheck them. When you uncheck them the page is reloaded but the checkboxes are still checked.
I use “Perfect Brands for WooCommerce” plugin to display brands. If I disable all the plugins, the problem is still there. If I change the theme from XStore to another one, the problem is resolved.
Thanks!