suddenly an uninvited FaceTime icon appeared

[download17]

I'm broadcasting with OBS on macOS, and suddenly an uninvited FaceTime icon appeared in the middle of the broadcast.

How can I disable this icon function?

 

[Lawrence_SoCal]

1. that is a FaceTime question, not OBS Studio and/or an Operating System setting (equivalent of Do Not Disturb)
2. I'm guessing you are Capturing your desktop/screen, vs a specific application window [which would be my thought to use],