Hi,
Unable to show the system title in preview mode (refer attachment)
Can you try to switch to other user view theme and see if the problem persists? Probably you have overridden the header in the theme's settings also.
Its only happen for "Enterprise Theme", others its look fine
Did you set a Custom Header in your Enterprise Theme? If you did, then that custom will override the title defined in the Userview Builder.
I did not set anything in Custom Header