Cannot share application

I attempted to share my application by clicking Share and adding an email address. After I click Invite, the window remains open and the message on the bottom still says "This application has been shared to none"

I tried to manually share the application by clicking the Manage Users link, adding the user and checking the application. There was no indication that the changes had been made.

The person received an email invitation to share the app. But when she clicked the link and created a login, it said that no applications were being shared to her.