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Mp4 exports after update to v15 are out of sync when playing on Quicktime

New Here ,
Mar 22, 2021 Mar 22, 2021

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Since the update to v15 all the mp4s I export on Premier Pro are out of sync (audio/video) ONLY when I play them through Quicktime. They play fine on VLC player. I have not changed any export settings, nothing in my workflow is different and on v14 the mp4s I exported were all in sync.

No, I do not export with variable frame rate, all videos are constant frame rate. It used to work like a charm, but now I cannot play the mp4 on Quicktime anymore. 

 

Has anybody encountered something like that? Any thoughts or help are appreciated.

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Audio, Error or problem, Export

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Community Beginner ,
May 10, 2021 May 10, 2021

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Yes i'm having the same problem too.

we need an update from adobe to fix this issues.

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New Here ,
May 10, 2021 May 10, 2021

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Yes I'm having the exact same issue. Would love clarification on what is happening here from adobe!

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Community Beginner ,
May 12, 2021 May 12, 2021

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I downloaded the update v15.2 still same issues. 

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Adobe Community Professional ,
May 10, 2021 May 10, 2021

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Do other mp4 files play OK in Quicktime?

It could be a Quicktime issue.

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Community Beginner ,
May 10, 2021 May 10, 2021

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All other mp4 video files before the update v15 plays fine in quicktime.

after the update to v15 all my mp4 video files are off sync.

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Community Beginner ,
May 12, 2021 May 12, 2021

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I have same problem!!! Adobe - FIX IT!!!

Mac OS 

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Community Beginner ,
May 12, 2021 May 12, 2021

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The problem is most likely in the Premiere v15 mp4 multiplexer.
If you make a remux this mp4 video, for example, in mp4tools Emmgun, - mp4 video is normal!

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Community Beginner ,
May 13, 2021 May 13, 2021

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This bug is also in the versions 15.1-15.2 Mac OS

Adobe, fix this as soon as possible. It's just a shame that the program creates corrupt mp4. 

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Community Beginner ,
May 14, 2021 May 14, 2021

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I have this problem too, which I posted in another thread.

https://community.adobe.com/t5/premiere-pro/strange-sync-problem/m-p/12036386

I think you're right. I think the latest versions of Premiere have a bug, as it's never done this before.

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