Access Denied?

Greetings!

Thanks for this great module! Now if I could just get it working. :)

I have installed Commerce File on a project per the documentation page, and everything seems to be working fine until the user attempts to download the licensed file, which results in an Access Denied error. The Licenses admin page at admin/commerce/licenses/ shows all licenses correctly as active, but whether I'm logged in as admin or masquerading as a user, I still get Access Denied. Unfortunately the system log entry is not much help. I am also using the File Entity module.

Have I missed something? Is there a File System setting or File Entity permission I overlooked?

Thanks in advance!