Apple today released a revised and updated version of iTunes 12.6. This minor update eliminates a hidden option that may have accidentally been built into the update. Some users may have noticed a toggle switch that allowed them to show a playlist on your profile page. It didn’t appear to do anything but nevertheless has been removed from this minor update.
To get the latest version users can go to the Mac App Store and find it under software updates. If you’re on Window you can use Apple’s update utility to get the latest version.