P: Glitchy Video in Timeline

If nesting was the solution, the issue was how you set what effects on the clip involved. Processing order matters, far more than most users realize. 

And sometimes, as with the heaviest effect possible, Warp Stabilizer, it is necessary to Warp, then nest, then apply other effects. And wiser to Warp, render & replace, then apply other effects to the "new" clip. 

So what seemed to work for me was nesting ALL timeline footage into one nest. Playback since then didnt show any glitches and also after exporting there were no glitches. Weird work around, but happy it works as this problem drove me insane. Hope it will work for you all too. Happy holidays! 

Hi @robb55106415 - Thank you for taking the time to do this testing.  Would you be able to send me the file that you used for this test?  you can email it to jamiec@adobe.com

Hi @R Neil Haugen  - thanks for the suggestions.

I've re-created my set of experiments, this time with your suggestions added on.

• COMPOSITE IN LINEAR COLOR is un-ticked in my sequence settings
• Import sequences natively un-ticked in Media Encoder (Preferences > General)

And there were some differences!

Glitches occured in the following experiments:

1, 2, 6, 7, 10

Things looked fine in these ones:

3, 4, 5, 8, 9

---

Interestingly, the only difference between experiments 5 and 10 was the change to this option:

File > Project Settings > General:
Renderer - Mercury Playback Engine Software Only vs Renderer - Mercury Playback Engine GPU Acceleration (CUDA)

Where CUDA was enabled in the successful export, whilst Software Only resulted in a glitch. Now that's a headscratcher!

---

Thanks for the tip! I've never thought to investigate the "import sequences natively" option in Media Encoder before!

The only two things I can think of are unchecking composite in linear color, and in Me, deselect import sequences natively.

No idea what that last does, but sometimes it does fix varmy behavior in Me exports

Hi @jamieclarke 

I'm still consistently getting the same issues on V25.1.

The workaround I've posted in this thread has helped mitigate the issues, but that method means I cannot use Media Encoder in any circumstance whatsoever.

I've had a spare hour in my afternoon, so I figured I'd run some experiments for you, in hopes that it may help you in some way. 

These are 10 separate experiments conducted with a project that I can reliably re-create the issue with.

I've listed the variables in each, alongside the result:

----------

All experiments had the following in common:

Sequence Settings:
Max Bit Depth - TICKED
Max Render Quality - TICKED
Composite in Linear Color - TICKED

Export Settings:
H.264 @ 12MBps CBR
Render at Max Depth - TICKED
Use Max Render Quality - TICKED

----------

EXPERIMENT 1:

File > Project Settings > General:
Renderer - Mercury Playback Engine GPU Acceleration (CUDA)

Preferences > Media:
H.264/HEVC Hardware Accelerated Decoding/Encoding - TICKED

Export Settings:
Exported via Premiere Pro
Hardware Encoding

- GLITCH OCCURED -

----------

EXPERIMENT 2:

File > Project Settings > General:
Renderer - Mercury Playback Engine GPU Acceleration (CUDA)

Preferences > Media:
H.264/HEVC Hardware Accelerated Decoding/Encoding - TICKED

Export Settings:
Exported via Premiere Pro
Software Encoding

- GLITCH OCCURED -

----------

EXPERIMENT 3:

File > Project Settings > General:
Renderer - Mercury Playback Engine GPU Acceleration (CUDA)

Preferences > Media:
H.264/HEVC Hardware Accelerated Decoding/Encoding - NOT TICKED

Export Settings:
Exported via Premiere Pro
Software Encoding

- NO GLITCH -**********

----------

EXPERIMENT 4:

File > Project Settings > General:
Renderer - Mercury Playback Engine GPU Acceleration (CUDA)

Preferences > Media:
H.264/HEVC Hardware Accelerated Decoding/Encoding - NOT TICKED

Export Settings:
Exported via Media Encoder - Mercury GPU Acceleration (CUDA)
Software Encoding

- GLITCH OCCURED -

----------

EXPERIMENT 5:

File > Project Settings > General:
Renderer - Mercury Playback Engine GPU Acceleration (CUDA)

Preferences > Media:
H.264/HEVC Hardware Accelerated Decoding/Encoding - NOT TICKED

Export Settings:
Exported via Media Encoder - Mercury GPU Software Only
Software Encoding

- GLITCH OCCURED -

----------

EVERYTHING FROM THIS POINT ONWARD IS A REPEAT OF THE ABOVE, BUT WITH THE FOLLOWING CHANGE:

File > Project Settings > General:
Renderer - Mercury Playback Engine Software Only

----------

EXPERIMENT 6:

File > Project Settings > General:
Renderer - Mercury Playback Engine Software Only

Preferences > Media:
H.264/HEVC Hardware Accelerated Decoding/Encoding - TICKED

Export Settings:
Exported via Premiere Pro
Hardware Encoding

- GLITCH OCCURED -

----------

EXPERIMENT 7:

File > Project Settings > General:
Renderer - Mercury Playback Engine Software Only

Preferences > Media:
H.264/HEVC Hardware Accelerated Decoding/Encoding - TICKED

Export Settings:
Exported via Premiere Pro
Software Encoding

- GLITCH OCCURED -

----------

EXPERIMENT 8:

File > Project Settings > General:
Renderer - Mercury Playback Engine Software Only

Preferences > Media:
H.264/HEVC Hardware Accelerated Decoding/Encoding - NOT TICKED

Export Settings:
Exported via Premiere Pro
Software Encoding

- NO GLITCH -**********

----------

EXPERIMENT 9:

File > Project Settings > General:
Renderer - Mercury Playback Engine Software Only

Preferences > Media:
H.264/HEVC Hardware Accelerated Decoding/Encoding - NOT TICKED

Export Settings:
Exported via Media Encoder - Mercury GPU Acceleration (CUDA)
Software Encoding

- GLITCH OCCURED -

----------

EXPERIMENT 10:

File > Project Settings > General:
Renderer - Mercury Playback Engine Software Only

Preferences > Media:
H.264/HEVC Hardware Accelerated Decoding/Encoding - NOT TICKED

Export Settings:
Exported via Media Encoder - Mercury GPU Software Only
Software Encoding

- GLITCH OCCURED -

----------

In summary - Experiments 3 and 8 yielded a positive result.

All others contained the same sort of glitch.

The only difference between Experiment 3 and 8 was the [File > Project Settings > General: Renderer]

So it appears that changing that did not impact the result.

Hi @jakew39230329 - Thank you for confirming, we are looking into this.

Hi, Yes I'm still experienceing it in 25.1
The issue goes away when I change my export settings to Software Encoding.
Haven't been able to use hardware encoding for months now. 

Hi @eegriff @Aaron29726166whtz @dusttin277423553483 @robb55106415 @Fleur98C - Are you still experiencing this issue in Premiere Pro version 25.1?

I'm curious if you navigate to File > Project Settings > General Then change the Renderer to Software only does the problem go away?

Hi @jamieclarke I have changed the setting as you suggested and one of the computers in our office has still had the glitch in a video export. Is there anything else we can do?