Wrong person recorded

I have a Zoom One Pro  account.

I hosted a webinar and made someone else a co-host, so he could let people in once the webinar had started. He did not speak at any point - he was there in a purely admin capacity.

For part of the webinar I screen-shared a powerpoint. For the rest of the time I spoke direct to camera.

But the recording showed him rather than me on the part when I spoke direct to camera. The part with the shared screen recorded as I would wish.

It's now made me nervous of making him a co-host in the future, but I don't wnat to have to admit people myself once the webinar has started.

Help please! Thanks in advance