In my SharePoint 2013 environment I have a site where the admin user group has design rights + security management rights. A readers permission group has read access on the site. I have a document library with one folder. On the folder I break the inheritance and give the readers group contribute access.
When the user from the readers groups wants to add a new document (Ribbon --> new document --> document) he gets a pop-up with an access denied message.
Why can't the user add a new document with contribute access?