I did this by accident, but its obviously a bug so I bring this to you: http://imgur.com/p6uxZEc So yeah, its exactly what it looks like. Basically I put your map (which you are supposed to click to open a voting menu) into my right hand, which i then right clicked. Instead of opening the menu, it turned it into an actual written map. Oh and there is no way to turn it back (as far as I know). Then I just put it back into my main hand and that it what the screenshot shows. Long story show, your plugin for right clicking items into random menus doesn't work in the offhand.