Sure, I'll file a bug report.
P.S. iMovie and Clips appear to work around this issue. We suspect they're using AVAssetWriter instead of AVExportSession.
miamitwinz
Users receive reputation points by contributing quality content to the forums.
Posts include post and replies published on the forums.
Post authors can mark replies as Accepted to indicate successful solutions.
Apple Developer Forums admins can mark replies as Apple Recommended to indicate an approved solution
Last seen
User for
Post
Replies
Boosts
Views
Activity
Hi there, Thanks for your response. We've already filed a bug report on 11/13/2020 titled "iOS 14: copying videos using AVExportSession resulting in audio getting out of sync". We'll add a sample app and media file.
Were you able to resolve this issue?
We filed a bug report, but haven't heard back.
Oh great! Fingers crossed!
I'm happy to report that the issue seems to have been fixed in iOS 14.5 beta 7!