quicktime player "export as" black screen with Audio only
Hello,
I used Quick Time Player to edit screen recording videos taken by Ipad pro. When I trimmed the Mp4 video and choose "export as", it has no prob. But when I did "split clip", deleted some clip part , then I only got black screen with only audio when "export as" new video.
I tried with other screen recording videos taken by mac, there are no problems. No matter I split clip or trim with Quick Time Player, I got videos I want.
The problem is that I only got black screen videos when edit screen recording videos taken by Ipad Pro with Quicktime Player. Any ideas on how to solve this problem? Thank you very much.
MacBook Pro 13″, macOS 10.15