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magnus atom
Participant
December 19, 2024

P: H.264 exports appear glitchy when scrubbed in QuickTime Player or Preview in macOS 15.1 or newer.

  • December 19, 2024
  • 27 replies
  • 3752 views

[Moderator: Updated title for clarity and making searching easier. This issue also affects Premiere Pro and Media Encoder.]

 

A month ago I updated my 2021 MacBook Pro to the latest Mac OS Sequoia 15.0.1 and that's when I began experiencing render issues when rendering H.264 from After Effects (2024 & 2025) or Media Encoder (2024 & 2025). The render plays back okay but when I scrub through, but when I scrub through the timeline, in AE, Quicktime, Frame.io, etc, I notice every 4th or so frame has terrible artifacting.

I've been able to work around this for a month by sending ProRes LT to my clients, however now a client is asking for a H264 so I'm stuck trying to figure this out or encode it on an old MacBook that still has an older MacOS version. 

 

If it helps at all, I've noticed when turning Audio Off when rendering through Media Encoder, the problem goes away, but obviously that's not a real solution. Anybody else have this issue and found a fix?

 

I'm sadly debating just buying a new MacBook at this point but not even sure that will solve the issue.

27 replies

Fergus H
Community Manager
Community Manager
April 15, 2025

Hi all, 

 

This issue has been fixed in v25.2 of our products. Thank you for your patience and thanks for reporting this issue!

 

Regards,

Fergus 

Participant
April 15, 2025

At high bitrates it doesn't matter to much.  But at lower bitrates Software will give you better results vs hardware.  The general rule of thumb is Software for quality and Hardware for speed.

Participating Frequently
April 15, 2025

Somewhere I read that using Software encoding fixes it. It does, so I do that. But I've also read that Software encoding is not as good. Adobe, please fix thius!

Participating Frequently
April 15, 2025

Yes. 

Inspiring
April 14, 2025

Did this fix make it into 25.2 including media encoder? 

Participating Frequently
March 11, 2025

Hi all,

 

The fix for this issue is now in beta versions of our video apps. We are not suggesting you use beta versions in production but if you would like to test the fix, you can try the beta. 

 

Thanks,
Mayjain

Participating Frequently
March 10, 2025

The Beta released seemed to solve the issue. You'll have to port over your presets and change your keyboard shortcuts though.

Fergus H
Community Manager
Community Manager
March 7, 2025

@Brett37091033ni8q My apologies: I was not suggesting that you use the beta for production work, merely providing it as information. I've clarified my post.

 

That are multiple workarounds to this issue available right now but we know that workarounds are not a fix and I apologize for the inconvenience. Adobe's Customer Care organization is the right path if you're looking for a refund. 

 

Regards,

Fergus

 

Fergus Hammond  |  Principal Product Manager, Premiere Pro  |  Adobe  

Participant
March 7, 2025

@Fergus H Thank you for the reply.

 

As you're aware, none of us working pros can upgrade to a beta or initial release of Premiere or AE until some of its new bugs are patched.

 

How about a refund on Creative Cloud until the software is working as advertised?

Fergus H
Community Manager
Community Manager
March 7, 2025

@Brett37091033ni8q We know the cause of the issue and know what we need to do to fix it. We expect the fix will be in the next release of our video products (the issue also affects Premiere Pro). It's likely we will have a beta version of After Efects & Premiere Pro with the fix next week. (I offer that information not as a suggestion that our customers should use a beta for production work but simply as information and to those who might like to check the fix for themselves.)

 

@alexandre_2086 if you're having a different issue with exports - it sounds like for you they are failing entirely - I would suggest that you start a new thread describing the issue. The issue in this thread has a very specific symptom, only visible in QuickTime Player or macOS Preview. 

 

Regards,

Fergus