Since 14.1 the group task handling in issues and changes is not working

Document ID : KB000092618
Last Modified Date : 20/04/2018
Show Technical Document Details
since update to 14.1 the group task handling is not working.
Even the tasks "Group Start" and "Group End" were removed from a Change Order,
the tasks between are still handled as Group Tasks
USRD 14.1
This will be fixed in 14.1 CP5 RollUp1