I was trying to create a display template for all of the container's sub-elements except one with "Media" as data type. Even when not included in the code, the "Media" sub-element is still being displayed.
"Debugging" has been enabled in our current setup.(Please see attached screen captures for reference).
Link to forum thread on the issue: http://www.collectiveaccess.org/support/forum/index.php?p=/discussion/comment/319250#Comment_319250