Export ProRes and H264 create and audio track not refleting the original timeline (unsyncs)
Hello,
Another day in the wonderful world of Premiere Pro bugs (23.2, Windows 11 Pro.
- 10 mins timeline (2160x1920@25fps) with mixed R3D, H264, WAV and MP3 footages.
- Some AEP simple titles in the timeline (not rendered)
- Some AEP renders in ProRes 422HQ or 4444
- Some shots are "pluginized" with Univers VHS.

I did an export of a this timeline in ProRes 422HQ (same res). The sound track of my export has some weird unsync (generally during crossfade). The sound gets unsync then go back in syn few secondes after.
I tied to export the exactly same timeline as a WAV only file and put toghether in sync the ProRes and the WAV in a timeline. Here is a example of the sync bug :
In blue : ProRes export
in green : WAV only export

1 & 3 section : in sycn
2 section : unsync
This happen nearly 10 times in my 10 mins timeline.
FYI, here is the original portion of this timeline :

Very few shots : H264 from Canon R5, R3D from RED Komodo, 3 audio tracks (2 from cams, 1 music in WAV). The only FX used is a simple Lumetri Color.
Any suggestion ?
noar
