Cameras not working for Home Monitoring System

I am installing the home monitoring system, and sensors work great. One opens and the thing goes off. What I can’t figure out is cameras. What are they supposed to do when the system is armed?

I mean, I have assigned 2 cameras to HMS (out of my 3 cameras), and not only I don’t receive any notification or message or nothing from the HMS, but on top of that, those two cameras stop capturing events. So, normal camera function of capturing events stop working, and nothing happens related to the HMS. The third camera, not assigned to HMS, continues to register events.

Am I doing something wrong?