Reply To: Header image

That should not happen. Not sure why it is.
Anyway, if you add the following CSS to ‘Customize’ > Additional CSS’:

@media screen and (min-width: 1025px) {
    .home .custom-post-type-header {
        padding-top: 120px !important;
    }
}

this should fix it in your case.

Have you modified any of the theme files?
The reason I ask is because looking at your site I noticed that your regular pages are returning a HTML syntax error and are not loading the page, but the Exoplanet theme does not contain this error.