Each post has a duplicated photo.

Hi Enrico,

Looks like your link never made it through.

Perhaps this CSS will help though..

.single .page-header-image-single {
      display: none;
}

Let me know :)

Thanks a lot Tom,
this code solve the problem.

Sorry Tom, the problem is solved for posts but it is not solved for the pages.

Page's featured image is showed in the page. It should only be used in the preview.

Not sure what you mean by preview? Pages don't act like posts where the featured image shows up on the blog and single posts - pages typically just have one featured image and that's it.

In wordpress you can set a featured immage also in pages. In all the themes I tested in wordpress the featured immage is not showed inside page or inside post.

Your code fixed the problem for posts but not for pages.

Enrico

That's because with pages they either show or don't show - if you don't want it to show on a page, you can just not add a featured image.

For posts, the featured images shows in blog excerpts and on the single post - so if you don't want it on single posts, that code works great.

For pages, the featured images just show on the page. If you don't want them to show on the page, you can just remove it/not add it in the first place.

Let me know if that makes sense or not :)

I understand Tom,
but now, since I used it, I can not remove it.

The featured images were used when the pages were shared. If I remove it now I fear that all the shared pages will have a preview of the page with an empty box.

I deleted a photo in the past and happened what I just described.

When you say shared, do you mean shared on Facebook or something?

Yes Tom,
now I use a seo tool to give the right foto, but I used the featured image in the past in few pages.

Gotcha. Do you have our Disable Element add-on? It allows you to hide the featured image on specific pages: http://generatepress.com/downloads/generate-disable-elements/

Yes I have It Tom,
I have bought all the add-on, just in case... :-)

I will try to fix it.

Thanks a lot for the support!

No problem, let me know how it goes :)