I am trying to use the Managed User bulk update from the Managed Users section of the admin console. I am trying to add a new group to some of my users.

I first download the current users excel sheet, then update the group column by adding my new group delimited by ";".

When I then upload the saved changes, I get a confirmation email stating that the updates were saved successfully. However, when I check back in through the admin console, the new group still remains unassigned. Re-downloading the user report also does not show my updates.