[Zatoichy]

When I target people it always doesn't register it. I must always retarget. For instance I put target on a player ...fighting...fighting...and after that I have invalid index serial in the left corner of display - so I need to retarget this player. (I use injection hot keys "cast Poizon last target").

[Epic]

try :

cast 'Poison' ; waittargetlast

in your hotkey