Keynote movie export loses sound
I have recorded a Keynote presentation. When Keynote plays the recorded file, the sound is fine. But when I save it as an independent movie (MacBook uses .m4v automatically) the resulting movie has no sound. I checked all the settings I can think of, to no avail. With all of my previously recorded presentations, the movie export worked well. Any hints? Thanks!
Vincent
(15" MacBook Pro 2015, macOS 10.15.7)
MacBook Pro 15″, macOS 10.15