Not Updating To Major Version

I have Comcast Business version of NIS.

 

I have "Automatic download of new version" set to ON.

 

I waited until a week after phased deployment was complete.

 

This occurs on all six machines.

 

The prior two major version updates (v20 and v21) did not update through Live Update (automatic or manual); I had to manually download/install the update via Upware Marketplace-->Norton Download Manager-->NIS21.

 

Is this by design or is something wrong?