I have been having a problem for some days now, and it may be a bug on the code.
My page is based on the Blog/Small images and it is this one http://airbnb-helper.gr/ti-prosferoume/.
I have noticed that when im changing the feature image of the blog itself, it does not “take it” although I am doing everything right. I go to the Media Library, I check the image I want, and then I click Select, and on the page builder menu I press “Update”… but it does NOT update the feature image when displayed here http://airbnb-helper.gr/ti-prosferoume/ !!!!! What could be the problem here? I managed to put feature images for two of my blogs (after aaaaaaaa looooot of attempts).
I hope you are well today and thank you for your question.
I can see on your shared page the featured images are displaying for blog posts as shown in the attached screenshot.
Thank you for sharing the site details.
I logged in to your site and set the featured image to the post without any issue as shown in the attached screenshot.
Could you please try setting featured image using different browser?