featured image disappeard

I’m pretty sure I solved the problem.

In my custom theme’s “event-single.twig” file was the following if statement:

{% if event.get_runtime( 'content_img_url' ) is empty %}
code that displays the featured image
{% endif %}

Once I commented the if statement out like so

{# % if event.get_runtime( 'content_img_url' ) is empty % #}
code that displays the featured image
{# % endif % #}

The featured image displayed correctly.

http://www.newseum.org/event/inside-media-1965-civil-rights-at-50/

The same if statement is in one of the calendar plugin’s “Vortex” theme.

Anyone know what its purpose is?

We are still running 2.1.5 on our production server… but 2.1.9 on our dev server. 2.1.9 had the same issue.