All,
I have a IPC-HFW4431M-I2 turret.
It HAD IVS. (face detect, intrusion zone, tripwire, missing/abandoned object, etc) I was using the tripwire feature. It was working.
Now IVS has disappeared. It only has Motion Detect, Video Tamper. WTF?
It’s like the camera reverted to a Pre-IVS...