I recently recorded a presentation Still see the gray box appear and even the sharing content box at the top of the screen when the presenter was sharing. Looked at the recording and it showed the same thing. Fortunately, while practicing I was able to coach the presenter not to have any content in that area so it wouldn't block what was shared.
Would be nice to find away to not have that window or pop-ups show on the presenters screen or on the recording.
I know this may of been shared before but.. please vote to fix this.