Show my talking in the video

Hi, guys!

I am having a small problem in Zoom class, so that I want to ask you how to handle it.

In my zoom class I am using MS power point screenshot. In the last year, when I review my recorded video, I could see a small window which showed my talking face at the corner of Power point screen.

However, in this year, my recorded video showed nothing else but the power point screen only. I tried to set up video control setting to show my face in the recorded video, but I couldn't at all.

So that I am asking what I need to do in the zoom setting to show myself in the video.

Thanks.