No Aiming pattern when DS3608-ER is in video mode. Why ?

For a functionality in our application, we use DS3608-ER in video mode and capture video-frames for 2 seconds. We noticed that no aiming pattern ( dot or line) is thrown at aimed target.  Aim On command also does not work in video mode.

Can someone from Zebra, please explain this behaviour. Is there any plan to fix this in future ? Is already some firmware update available to have aiming pattern in video mode?