Useradd cannot create user [SOLVED]

Software SW help
1

Hi,
I try to create account with:

    useradd -m -b /home -g git -R /srv/git -s /usr/bin/git-shell username

I get error:

    useradd: group 'git' does not exist

However group was created and is present in /etc/group:

    root@turris:/# cat /etc/group
    root:x:0:
    daemon:x:1:
    adm:x:4:
    mail:x:8:
    audio:x:29:
    www-data:x:33:
    ftp:x:55:
    users:x:100:
    network:x:101:
    nogroup:x:65534:
    sshd:x:22:
    transmission:x:224:
    shared:!:1000:transmission
    knot:x:3535:
    mysql:x:6446:
    mosquitto:x:200:
    rpc:x:65533:
    git:x:6447:
2

my fault… -R option caused the issue