Updated the plugin to version 126.96.36.199 today, and since then I cannot drag and drop the different widgets or sections of WordPress' backend, such as in the dashboard.
Tried deactivating the plugin, and I can drag-n-drop just fine. Re-activated, and that ability disappears again, so it's definitely this plugin.
Also, hovering over the admin menu items usually pulls up a number of options for many of the menu items. Since the update, this is also broken. For example, where normally I could hover over "Appearance," and see "Themes," "Widgets," "Menus," and so on, I don't see those anymore. Instead, I have to click "Appearance" to bring up the defaul Appearance page (Themes), and then the other options are shown.