After upgrade database to 10.6.1 from 10.4 I was able give permission to user so they can see some layers. this sis SQL server 2014. After upgrade, I am able to access my DB but when I try to grant privileges to a user I got his error.
I know my username and password is correct because I can see my layers and use it as admin, editor or user.
I checked my DB and I can see my gisadmin user there with the correct privileges. What could it be?