Hi Anton,
Sorry for the inconvenience.
In this issue, you need to reselect the images from the media and we recommended using back-end editor (Edit Page) instead of front-end editor (Edit with WPBakery page Builder).
Moreover, you will get the header option in the below of every page. Please check out the screenshot as a reference http://prntscr.com/m57db2
Best Regards,
ThemeLooks Support Team