AD Group Mapping

Hi! I’m using 5.2.1 version of OpenNebula.
I have ldap auth enabled and configured. It works fine. And i have Group Mapping enabled and configured, but it works kinda weird - i have 1 user, that is assigning to appointed group according to AD group membership. But other users assigned to default group no matter what i do. They are in same AD group.

server 1:
    # Ldap user able to query, if not set connects as anonymous. For
    # Active Directory append the domain name. Example:
    # Administrator@my.domain.com
    :user: 'user'
    :password: '123'

    # Ldap authentication method
    :auth_method: :simple

    # Ldap server
    :host: 127.0.0.2
    :port: 389

    # Uncomment this line for tsl conections
    #:encryption: :simple_tls

    # base hierarchy where to search for users and groups
    :base: 'DC=domain,DC=lan'

    # group the users need to belong to. If not set any user will do
    #:group: 'cn=cloud,ou=groups,dc=domain'

    # field that holds the user name, if not set 'cn' will be used
    #:user_field: 'cn'

    # for Active Directory use this user_field instead
    :user_field: 'sAMAccountName'

    # field name for group membership, by default it is 'member'
    #:group_field: 'member'

    # user field that that is in in the group group_field, if not set 'dn' will be used
    #:user_group_field: 'dn'

    # Generate mapping file from group template info
    :mapping_generate: true

    # Seconds a mapping file remain untouched until the next regeneration
    :mapping_timeout: 300

    # Name of the mapping file in OpenNebula var diretory
    :mapping_filename: server1.yaml

    # Key from the OpenNebula template to map to an AD group
    :mapping_key: GROUP_DN

    # Default group ID used for users in an AD group not mapped
    :mapping_default: 1

# this example server wont be called as it is not in the :order list
#server 2:
#    :auth_method: :simple
#    :host: localhost
#    :port: 389
#    :base: 'dc=domain'
#    #:group: 'cn=cloud,ou=groups,dc=domain'
#    :user_field: 'cn'


# List the order the servers are queried
:order:
    - server 1
    #- server 2

server1.yaml

CN=onenebula,OU=Groups,OU=City,OU=Company,DC=domain,DC=lan: ‘101’