We have tried installing Unified CABI 6.3 several times now, with the install always getting stuck at 13%.
We have tried using Taskmanager to terminate the install, clean up directories and run the install again however that always gets stuck at 13%
The Unifed CABI 6.3 was successfully installed in 2 other environments but for the current environment the install will not proceed.
 

Release: CNMSPP99000-8.47-Unified Infrastructure Mgmt-Server Pack-- On Prem
Component:

This could be related to Administrator permissions being lost during the script execution.
As a possible workaround, terminate the existing install, clean up the directories and files then navigate to the following directory
ca_install\GUI_Install\Windows\Disk1\InstData\VM\

In there, right click the setup.exe file and Run as administrator.