Scripts

It doesn't help, the problem is still the same – the quest doesn't fail, no one loses, and the console doesn't see any errors.
And the "1" is there because the quest fails for the first player.

function onObjectCapture( prevOwner, newOwner, hero, object )
         if prewOwner == PLAYER_3 and newOwner == PLAYER_2 then
          Trigger( OBJECT_CAPTURE_TRIGGER, 'houseElf', nil )
          SetObjectiveState ('q4', OBJECTIVE_FAILED, PLAYER_1 )
          sleep(10)
          Loose()
         end
end
Trigger(OBJECT_CAPTURE_TRIGGER, 'houseElf', 'onObjectCapture' )