Launch the Terminal app and run the following commands so I can view the permissions associated with the home Library folder and the "~/Library/Preferences" folder as well (best to copy & paste it):
sudo ls -hled@ ~/Library
sudo ls -hled@ ~/Library/Preferences
These commands will prompt you for your admin user password. Nothing will appear on the screen as you type the password. Press the "Return" key to submit the password. Post the complete results here. I suspect you have a permissions issue since I have seen it occur several times with my organization's Macs and even a couple of posts on this forum. These commands will show me the permissions associated with those two folders.