Administrator Privileges not working since 10.11 update
Since upgrading to OS X 10.11 yesterday, I've had requests from several applications to update - Adobe Creative Cloud being the most important but whenever I try to update all nothing happens. When I try to update an individual app I get the error: Update Failed: Administrator privileges are required to update your product." I am the administrator of this computer and have not any any problem until upgrading yesterday. Now any update that uses Apple Installer doesn't work. I've tried to check my status in Users & Groups. Still says I'm an Admin but when I Click the lock to make changes and enter my password nothing happens. the icon doesn't change, no error, nothing...
FWIW, I'm not using iCloud Password to login and unlock.
MacBook Pro with Retina display, OS X El Capitan (10.11)