new interface doesn't work

By all accounts, this is a great little plugin, but I found the new interface that comes with the 6.0.1 version to be maddeningly useless. Amongst other things, the drag and drop editor for the buttons just showed a row of coloured squares rather than the various site icons and once an icon was dragged into the ‘shown’ area there was no way to drag it out again, even by deleting and reinstalling the plugin. All the support is for the old interface so there was nowhere to turn to sort these very basic problems 🙁