Back in November 2020, I updated up my FreeNAS to release 11.3-U5 in preparation to the upgrade to release 12.0. A few tabs on the menu didn’t work. The Accounts with Group and Users tab was one them. After I upgraded to release 12.0, the tabs were working again.
As of this 12.0 release, FreeNAS is now known as TrueNAS Core. I won’t go into the details of the name change but here is a link that has that info.
Currently I am running release 12.0-U2.1 and everything is running well.

