Oh, okay, so based on the code this is not just a custom field, but a sub-field for a ACF repeater field. That means that the image is not stored within that field name, but this is used to store multiple (repetitive) images for rows within the post.
Can you please try this configuration: https://i.imgur.com/SDuvsU8.png
It might be able to get the image from the filtered content. If that does not work I will try to construct a custom code to somehow get the first sub field, but I’m not sure if that is possible outside the post loop.