The setting to display the author’s name or not is for the heading of the article. Where you have the “Published By HUB” is in a footer widget which is specifically designed to show the authors name and avatar.
To remove the widget, click Customize > Widgets > Footer 1. (Or it might be in Footer 2 or Footer 3. You will have to check. Delete this widget from the footer if you do not want it there on blog pages.