When we try to search user in view user activity screen, it returns the one user we try to search. But when we see the details in "task performed on this user", multiple users are shown.
Release : 14.4
Component : CA Identity Suite Virtual Appliance
Engineering provided a hotfix (HF-DE555153.zip) to resolve this issue.
If you have a 14.4 CP2 vApp installation and facing the same issue, then please create a support case and request for the hotfix HF-DE555153.zip