I just noticed today Provoke does the same, it does not hit the targeted mob, but it does hit the last mob I engaged with, my chr even look back to that mob and not the mob I already have the target on, which is on my front

I'll try to explain it better,

in dungeons,
1- I run to group of trash *group 1* (shield lob) + flash,
2- run to next trash *group 2* ( shield lob) + (Circle of Scorn) on all mobs, group 1 and 2
3- keep hate on all mobs till we take them all down.

the issue is:
While running from trash number 1 to trash number 2, I use shield lob to make group 2 aggro me before using circle of scorn, but my shield lob hits one of the mob on group 1, not the second which I already have a target on, it is very annoying,

can it be a lag issue ?
I just cannot understand how I hit a mob that Im not targeting, .. yes I already have hate from that mob, but it has no arrow over it's head, it's on another mob, but still, it goes back to him. very weird issue.