Can't change user account type after Tweaking Update repair

[leojbourne]

I ran Tweaking Update repair, which did a huge amount in terms of updating ACEs and other things.  Now administrator accounts, including the Administrator enabled one, cannot change other user account types from "standard" to "administrator".  If I login as an administrator and go to Control Panel, User Accounts, select one to change and then select the "administrator" button, the "change" becomes grayed out.  Any thoughts on this, please?

Running Windows 10 64 bit April 2018 version on a Dell 570 desktop with 16 GB RAM.

[Boggin]

Were you able to do this before running the repair program ?

Can you boot into Safe Mode and use the program's Backup Tools to use the Registry Restore option and then see if you can do it then.

What was the original reason why you ran the repair program ?

[jpm]

This is a horrible video - but it shows what the problem could be. Is that the solution?
https://www.youtube.com/watch?v=2F4I97asrwE