SetViewTarget secrets.

So I noticed that SetViewTarget only works when I have an active pawn. When I get killed and I destroy my pawn, I can’t use ‘SetViewTarget’ on other pawns. Is this correct or am I doing something wrong? Can someone please shed more light on how properly spectating other players should be done?

( Also when viewing other players, the camera jitters, I assume this is because the rotation of their camera is replicated and needs to be smoothed, is there anything like this built-in? )

Thanks in advance!