I also have the same issue. I can add that in Mojave as the same ad user, it works.
I wonder, if it has something to do with the new security settings in Catalina under "Files and Folders". I have Desktop and Network Volumes checked. I am running 10.15.3 on a an imacpro.
I also have the same issue. I can add that in Mojave as the same ad user, it works.
I wonder, if it has something to do with the new security settings in Catalina under "Files and Folders". I have Desktop and Network Volumes checked. I am running 10.15.3 on a an imacpro.