Anyone come across the inability for an Anonymous User to access a Web App deployed on Portal for ArcGIS 10.3.1 via Web AppBuilder Developer Edition v1.2? The Web Map is shared to 'Everyone' as is all of the content and the basemap is the standard out of the box Esri basemaps. Interesting thing is the same user (Anonymous) can access the Web Map that feeds into that Web App. Also that same user can access the Web App if it was built through the Portal wizard for building a Web App. So, in a nutshell why can't an Anonymous (non named users) access Web Apps published through Web AppBuilder Developer Edition v1.2?