When the product is searched and the price filter applied it seems to work until the select all feature is used. Then the filter is not utilized. It seems to me that the filter settings should be stored in a cookie and reapplied based on search.
Regarding the search, when a product is searched for the price range is $0-0, is there a fix for this?
I must admit that the last time I updated the site with the latest versions of xstore it broke the site. Have you changed it in sucha fashion that the child theme breaks as well?