I have a series of files and access to the files is restricted based on Joomla user groups. The default file list page is giving access to all files, regardless of the permission settings by listing all of the files before the user chooses a file group from the drop down filter. So the default for the page is to list all files until the user filters the files.
The filter list shows the correct file groups and the menu shows the correct menu items based on the user groups and the access settings.
See the attached image for an example. The user in that case SHOULD NOT see the files for LakeBridge or St. Moritz, but they do.