I am a new Accordance user (and also a recent 15" Retina owner, so am waiting patiently for the promised Retina support), and have an issue trying to open the Atlas. I have the Essentials Package, on 10.3.2 and when I choose the Atlas, I get a window asking for 'Where is the file <atlas type>?'. The window has selected the 'Modules' folder, with nothing that I can choose to open - ie. no valid map source files.
I have found some similar issues in the Forums, which suggest deleting the 'General' file under Library/Accordance Preferences, which I have tried, but no change.
The Easy Install and library updates are all up-to-date and I have the Atlas module listed in the Library in Accordance.
As I began by saying, I am a new user, and I am certainly still at the 'learning' stage with regard to using Accordance, but I don't think I have missed something basic, but I am open to ideas.
MacBook Pro 15" Retina
Accordance Essentials, 10.3.2