I use the plugin on more than one site, sometimes the above solution works and sometimes it refuses. I “think” some other plugins get in the way. I have begun turning off plugins (not yours) to see where the intrusive beasts are. Some of the SEOs are very nasty as are visitor counter plugins. They “seem” to insert code at the cost of other items not working. So the nasties are being replaced/deleted slowly to see where the fix(s) are. Still the best, controllable solution for magazine columns.
Best to you,
P