Zoom recording on new Iphone15...only video. Is not recording audio.

Help. For a couple years have successfully and easily Zoomed and recorded to cloud on an iPhone 11...a meeting every Thursday.    Just upgraded to iPhone 15 and now can only get a recorded video, no audio.

I have done everything I can think of...watched videos etc....no success. Checked settings, everything is updated, not on mute.....

Any ideas? I am so frustrated.