I'm seeing some strange behaviour with Display Widgets 1.24 and WPML 18.104.22.168. I have a dual English / French site
In Appearance > Widgets, if I choose a custom menu and then select an English menu and press save, the list then changes to just show French menus. The display on the site remains English, however, if you then re-save the widget the French menu will be shown.
Similar switching happens for other types of widgets.