or try this:
hey, lay theme has a built-in layout cache that probably holds the old category version. try this: in wp-admin go to Lay Options → extra features → disable "Layout Cache"
also flush any hosting-level page cache or cdn while youre at it.
if that doesnt fix it, can you send your website address, /wp-admin/ username and password and a link to this topic to info@laytheme.com?