How many SID/groups can be set for the option 'require_membership_of' in /etc/security/pam_winbind.conf?

Issue

• Set multiple users or groups to the option require_membership_of in /etc/security/pam_winbind.conf.

  require_membership_of = group1,group2,group3,group4,group5,group6,group7,group8,group9,group10,group11,group12,group13,group14,group15,group16,group17,group18,group19,group20,group21,group22,group23
  

  Then the 23rd group member user cannot be authenticated and the following error is recored:

  Cannot convert group group22 to sid, please contact your administrator to see if group group22 is valid.
  

• Is there a limit to the number of users/groups that can be set for the option 'require_membership_of'?