In the title component, when creating a new action, there is an option for the button to have no label or title, only the icon which work well expect in phones, when the app is open in a phone, the component automatically “shows” only the title of the button by default and not the icon, but since the title of the button was left intentionally blank (actually with an space only, otherwise the icon wont show up even in desktop) there is no button title or icon seen.
It will be nice to have the option to show the icon in both views, and taking the opportunity it will be also nice to enable in the action the option to show the label only when the mouse hover over the button.
Desktop view
Phone View