I have downloaded and added the latest build of the Local Layers widget to my WAB 2.2 widgets list, and added the widget in the config files for the theme I am using as well as in the default config under "predefined-apps."
I can see the widget in WAB and begin to add it, however after finishing tweaks to the "Configure Local Layer Widget" box, the OK, Cancel, and 'X' are completely unresponsive. I can't close the configure window, and am stuck refreshing.
I can see that the widget has been added to my UI, but just can't get there. I haven't experienced this issue yet with other apps. Is this a familiar problem to anyone? I've attached a screenshot of the window I am stuck on. Using Safari on OS X 10.10.5 for development.