User-manager not working right

[_igor_]

The usermanager adds groups to group, but users are not added to passwd! I mentioned this a time before.
The user-directories are created right.

So at the moment I add users via cli, so not urgent.

[_igor_]

Even adding the users via pw useradd i get on login

Oct 28 14:21:32 sshd[40149]: Failed keyboard-interactive/pam for invalid user ftp from 10.112.35.13 port 53824 ssh2
Oct 28 14:21:32 sshd[40149]: error: PAM: authentication error for illegal user ftp from 10.112.35.13

What else can be missing? The user has shell-access granted.

[_igor_]

With actual snap (20091105-1507) usermanager is still unusable: No user nor group is added!