Background Image not working in Views?

Hello,

I created a background image field on my node type. I gave it a default image. I also gave it default css settings and a default css class selector (".contentheader").

I created a block view for that node type (contextual, based on content ID) and gave it a class of "contentheader". I added the fields "Title" and "Background Image".

I added that views block to the top of the page for that node type.

I am seeing the title field in the view, but the div with class "contentheader" is not displaying the background image. I have cleared cache, but that did not help.

My settings for the Background Image field in the View are as follows:
Column used for click sorting: target_id
Formatter: Background Image Field Widget
Responsive image style: Background Image (the name I gave to that image style)

What are the additional steps that I need to take to make the image show up as expected?

Here is a SimplyTestMe that shows the issue: https://drwzz.ply.st/user/login
username/password: admin
Link to page that should show a background image, but doesn't: https://drwzz.ply.st/node/1