ActiveDirectory Group Mapping non-functional

I have configured LDAP authentication to my AD, and I can login as test users. But OpenNebula does not map the users to any groups beyond the default group.

Please check the mapping file ‘server1.yaml’ under /var/lib/one/ folder and edit it as per your need.
Also go through [LDAP Authentication — OpenNebula 5.12.8 documentation]

Doing more testing I am able to map users in AD to any group in OpenNebula other than the oneadmin group. Is this intended that the oneadmin group cannot be mapped to AD/LDAP accounts?

Onedmin should work fine for grouping, have the attribute set