In xflow the assignee list is not filtered based on Group while changing status and also it displays default top 10 contacts.
-> For Acknowledged Status make "Assignee" field as required.
-> Open a ticket in Xflow where group is present
-> Change status to Acknowledged and try to save, it will populate assignee field to be updated as required.
-> The dropdown list of assignee will display top 10 contacts, it is not based on group.
-> Also the list is restricted to 10, cannot display more assignees. Hence sometimes it doesnt allow right assignee to be selected.
Release : 17.2
Component : SERVICE DESK MANAGER
This is a known defect and is currently under investigation by Engineering team with defect id - DE60678
Kindly raise a case with support to know the status of Defect.