I'm experiencing slight audio sync exporting a Prores 422 clip to 1080p h264. The audio is a millisecond off but noticeable on dialogue scenes. The Prores file is LPCM while the h264 encoded output is AAC. Playing back in Quicktime the Prores file is clearly in sync, while the outputted 1080p h264 slightly off.
It's the first time I've tried converting a Prores file so I don't know if this is a known issue or not. Is it because of the change in audio format?
Thanks.