Media gallery grid-view broken

We noticed that the IDX plugin was breaking our client’s grid view of the media gallery and the dynamic loading of thumbnails spun indefinitely with no thumbs loaded (list view worked). Unfortunately, one of the other required plugins uses only the media gallery grid view in its interface and the list view is not an option.

We verified the grid view remained broken with the latest WordPress core, latest IDX plugin installed, an unaltered base theme, and no other plugins enabled. The only somewhat unique factor is that our media gallery has roughly 2,000 images. As soon as the IDX plugins were disabled on their respective sites, the problem disappeared on both the production site and empty install.