Audio stripped of video when uploading to iCloud.
Here's the context : I am trying to upload old videos from my old camera to my iCloud photos library. When the upload is complete, the videos work but the audio is stripped out. The audio button is gray and cannot be activated. The uploaded videos are not faulty since they work perfectly fine in a Windows environment with audio. The audio disappears when it enters an Apple environment (iOS, macOS, iCloud).
Help!
iPhone 13 mini, iOS 16