Red flicker when I'm in a meeting

I am actively interviewing for jobs and often the interview is done via Zoom meeting. My most recent interview was severely impacted by a red flashing screen on my video screen only. Her video was not flickering, just mine. I have tried the background filter solution that was previously recommended for this, but that has not fixed the problem. Any other ideas?  

I'm using a brand new MacBook Air with an Apple M1 chip