Can't install 12.0.4 patch

Does anyone know why I'd not be able to install the FM 12.0.4 update? I've currently got 12.0.3.424 installed, and when I go to the Help menu, the "Updates" menu item is greyed out. When I run the Creative Cloud app it doesn't list any FM updates there. I've downloaded the 12.0.4 update installer from the website, and when I run the installer manually it tells me ..

     Update Failed

     Updates could not be applied

     Please contact your Administrator if you wish to apply updates on your machine. Updates have been

     suppressed by the Administrator.

I'm the admin. I have admin permissions. I get the same message if I run this "As Administrator".

Any ideas?

Thanks!

...scott