…even if the setting option is toggled. We had to use a dedicated plug-in. It was the only image at the top of the article but was not read as “featured” by Tempera.
The “featured” image is the one set as “featured” in WordPress.
The theme has an additional option to select content image and use them as featured, but that sometimes depends on how the images were uploaded/inserted into the content (they need to be associated with the post).