11.2.3a MU1Monthly Update 1 for ZENworks 11 SP2 (11.2.3a)

On some workstations will update, on others it will sit there with just Update Assigned & nothing happening

I can reboot the machine, refresh agent, nothing makes any difference

Update for ZENworks 11 SP2 (11.2.3a) is Completed

What elese one could do to actually have the update happen on a workstation?