The single item view displayed correctly prior to changing the sub-site installation title, in our multi-site network from "Demo" to "Sample Portfolio".
Before we changed the title, I copied the site where the single item view displays correctly: hidden link
But the source sub-site where we changed the title apparently no longer responds Additional CSS that was added to limit the featured image vertical height: hidden link
Could changing the name have caused this and how can you help me resolve it?
On the website where the image is showing correctly, it is because the image's thumbnail size is small (293 × 440 px) and it is not being controlled by that custom CSS code.
To control the image's height, through the CSS code, you can replace it with: