Chris,
I installed the new version of the plugin (4.0.11) but there’s no change. Also tried deactivating and re-activating the plugin. Still no change.
I have been using the plugin for about a year; everything worked fine until two or three weeks ago. I haven’t added any new plugins to my site in several months, so I don’t think it’s a plugin conflict (unless perhaps an update to another plugin caused the problem).
I’m running wordpress 4.4.2.