Question:
I have a Hikvision recorder that support POS overlay. The live view shows the POS information, but playback does not. What's wrong?
Answer:
Once the video is exported, the exported video with need to be played back with the VSPlayer available through the link below.
https://us.hikvision.com/en/support-resources/downloads/tools
Once installed, play back the exported video, then right-click on the video, then go to "Image control->VCA info and make sure the "POS text overlay" is checked.