recording yoga class on zoom without showing participants

Hello, 

I am wanting to record a yoga class that I am teaching on zoom. I would like to be able to see the students when i am recording but would like the replay to only show me. I googled and found what i thought would do that (settings-recording-and toggled on "record active speaker, gallery view, and shared screen) but i did that and it didn't work. Is there something else i need to be doing?