Profile manager pending on some devices
As an admin you may be able to bypass the managed preference settings. Log out and then back in while holding the Option key. If allowed you'll see a dialog allowing you to disable managed preferences.

As far as the clients not receiving the profiles check the system.log file for errors. Look for entries from mdmclient. On the server, check the Profile Manager logs in Server.app or in /Library/Logs/ProfileManager/ probably starting with the profilemanager.log file.

Is this a user-level profile or a device-level profile? I think user user-level profiles are only installed when the user logs in.

If all else fails you can try removing all profiles:

sudo profiles -D