My Web Widget is not showing in any page other than my Help Center. This only happens if I have the Help Center and Contextual Help options selected in the Web Widget settings:
The Web Widget only renders content based on what it has access to. If the widget is not showing up in a particular website, most likely you have the option Require sign in enabled in Guide under Settings () > Security (see Restricting Help Center access to signed-in end-users).
Having this option enabled, with Help Center and Contextual Help features selected, prevents the widget from loading for unauthenticated users. If you enable other options, like Contact form, the Web Widget will work again.