Starting January 15, 2020 9:34 PM, the members of any newly created Google Group are not visible on Google. To anyone with manager’s access to the Group, it appears that the membership has not been loaded, when in fact, it has, but not visible.
Google is aware of the issue and resolved it on Jan. 16, 2020 2:00 PM. The backlog is expected to take several hours to clear. More information can be found at Google’s App Status Dashboard.
We apologize for any inconvenience this may have caused.
-Computing and Communications Services