I edited the css generator (breadcrumb and product breadcrumb both ticked as ON) possibly it’s some other conflict? But the product category is now missing. What else can I check. See here https://app.clickintelligence.co.uk/service/da50-na/
Delete the existing file and enable all at they were, then disabling the feature check the site. It it worked correctly before you have disabled it means that you disabled something necessary.