After recently adding new groups to Active Directory, the new groups are not available to be enabled for visibility.
Have a user from the newly created group attempt to access Foglight using their LDAP credentials. The group should then be available under LDAP Groups to be enabled for visibility.

Alternatively, if the user has not accessed the Foglight console, from the LDAP Groups dialog use the Import Groups option to manually import the new groups and enable visibility.
