Let me discuss the prob with u.
I faced this prob in the regular standup I take on JIRA .
Suppose I have a parent user story A, it has two child issues B and C.
A is assigned to ram.
Now ram has assigned B to Shyam and C to Ghanshyam.
Now when I click on the Shyam icon to see all the tickets, B is not visible (as B is a child issue ).
This becomes really cumbersome for everyone during the standup