Kevin's tested this plugin for me on OS X, I know. But it's been a while. I don't believe that icon is even visible on a Mac, so I could easily exclude it for that platform if it's found to be causing issues.
@odamizu: in fact ... here's a version that does just that (in case you don't want to manually edit the plugin yourself). See if it makes a difference. If so, I'll commit the change and release a new version. I'm not in love with the icon or anything. 
EDIT: test attachment removed since the first post was updated to that version