“Visibility by Screen Size” causing column collapse in desktop view

Hi,

When I enable the “visibility by screen size” option on any of my rows to be anything above medium, it causes the columns within those rows to collapse even on desktop view, even when the “no collapse” option is selected. My mobile and tablet screen sizes are set to the defaults (780px, 1024px). You can see the problem here, where I do not have the visiblity by screen size option enabled:

Home Page

And here, where I do:
http://www.sturgeon4statesenate.com/test

I have already flushed the cache and tried de-activating all non-Site Origin plugins. Didn’t make a difference.

Any idea why this is happening?