view as google doesn’t display correctly the homepage due to header image

Hi,

I’m having trouble with the header picture on homepage.
On google search console when i try to “view as google” the homepage, i get all the content of the page uploaded correctly but on the display, i only get the header image and the nav menu, nothing show after.
If i remove the picture, google display correctly the whole page.
This happens without plugin, theme child or any change on wordpress or theme.
i found that happened to some others but didn’t find a lot of informations and no solution.
It’s seems critical for SEO and seems to come from the theme himself.

Any idea or help ?

Thanks