Groups
From Sage CRM Knowledge Base
Issue whereby groups do not appear in CRM - Seems specific to CRM 7.1c and beyond.
Fix found on
https://community.sagecrm.com/user_community/f/84/p/6218/17409.aspx#17409
SQL to run on server
update custom_sysparams set parm_value = 'Y' where parm_name ='allowduprecs'
Refresh Metadata and this has been seen to work