APC UPS NMC3 LDAP Recursive search based on groups

[LaXaRuS]

Version: v3.1.1.1

I am trying to get this to work but recursive queries for Custom Group Member Attr memberOf:1.2.840.113556.1.4.1941:= does not seem to work. Is this not supported?

See below for my config
Search User URI: ldaps://ldap.ad.mydomain.org/CN=bind,OU=Misc,OU=ex,DC=ad,DC=mydomain,DC=org

Users Base DN: OU=ex,DC=ad,DC=mydomain,DC=org

Groups Base DN: OU=Groups,OU=ex,DC=ad,DC=mydomain,DC=org

Admins Group Name: apc-admin

Device Users Group Name: apc-nmc-device-users

Network Users Group Name: apc-nmc-network-users

Read Only Users Group Name: apc-nmc-readonly-users

Active Directory Schema: Enabled

RFC2307 POSIX Schema: Enabled

RFC4519 User Schema: Enabled

RFC2798 inetOrgPerson: Enabled

Custom User Class Name: user
Custom User Username Attr: sAMAccountName
Custom User Group Number Attr: blank
Custom Group Class Name: group
Custom Group Member Attr: memberOf:1.2.840.113556.1.4.1941:=
Custom Group Group Number Attr: blank
Custom Group Member Type: DN

Test succeeds for direct members of apc-admin group but fails for the group members nested under apc-admin group.