I’m using a page builder (e.g. visual composer) and my protected posts are showing
Some page builder plugins such as Visual Composer include shortcodes for displaying posts or categories on a page. These may not work with the privacy options in Password Protected Categories. For example, if you are displaying your most recent posts on the homepage then posts from protected categories may appear, even if you have unticked the ‘Catalogue Visibility’ boxes in the plugin settings.
You can fix this problem by manually excluding the protected posts or categories from the page builder element. The exact process will depend on the page builder, but there is often an option to exclude specific posts or categories from these elements.