I can't use Header offcanvas on elementor header

I made a header with elementor pro and used Header Offcanvas for the menu. Now, when the page is loaded and I click on the Offcanvas menu, the content of the menu appears on the full page, but if I don't click and scroll a little then click on the menu, the content of the menu is displayed only in the header area and is no longer the full page. Please advise