I'm not sure why but Final IK Bridge component deactivate the AimIK component when game starts and it automatically creates a "IK Target" gameobject as target. I can manually activate the AimIK component and change the target from the inspector. But it's not even work with a script (Activating & Target changing). The "IK Target" object that creates automatically, cannot move or modify. I tried with a complete new scene and setup. Still can not find a solution.