iMovie Export file to mp4
using Monterey and iMovie 10.3.2.
Have recently exported 3 movies to mp4 files.
Now 4th movie get failed message. Tried many times but get this - Error: RequestCVPixelBufferForFrame returned: 3 for absolute frame: 40085. (Absolute frame number usually varies with each failure).
How to I overcome such a problem?
Grateful for help with this. Thanks
iMac 21.5″, macOS 10.15