Second Monitor blinks a lot before become black screen.

This problem only happens after I get into a zoom meeting. the problem does not occur while gaming, browsing, working etc. . when i get into a zoom meeting after some duration (could be immediate or could take some time) my second monitor blinks like there is a problem with the HDMI before becoming black completely. I have checked the zoom version and my windows 10 version are all up to date. is there any suggestion to fix this?

note: i can still drag any window to my second screen