Hello.
When a malicious file is detected, Real-time alerts are not displayed, only sound is played
HIPS alert is not a problem.
Note: The video that was sent is from 2 years ago, which I sent in https://support.comodo.com do, but since then, this problem still exists. And when this problem occurs it lasts for hours and sometimes for several days.
Thank you for reporting, could you please tell us exactly what you did and what happened or provide us steps to reproduce ?
So that we will check and update you.