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Kduffley
Inspiring
July 5, 2024
Question

Random color shifting artifact after export

  • July 5, 2024
  • 1 reply
  • 366 views

I'm having issues with getting random color shifting after exporting - it's almost like there's a few frames of an adjustment layer that will pop up for a frame and then disappear.  The first two screenshots below are consecutive frames and then the third is where it shifts back approx 7 frames later.

 

There is no adjustment later, no lumetri keyframes, etc and as I've been working though "fixes" and exporting, there have been more showing up in the project. Nothing shows in the timeline before the export either. 

 

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1 reply

P
Community Expert
PaulMurphyCommunity Expert
Community Expert
July 5, 2024

Can you tell us more about your media, effects and export settings?

Cheers,
Paul

K
KduffleyAuthor
Inspiring
July 8, 2024

Hi there,

 

Yes, I'm trying to export the original UHD 23.98 file into a 30 fps H.264 seq with captions burned in. I'm using the optical flow time interpolation to help smooth the frame rate change. I'm getting error after error and so I'm using hardware encoding only, GPU acceleration turned off.  I was using Premiere Pro 24.2.1 but was having so many issues that I opened a copy in Beta 24.6.0 and got even worse errors - see the attached picture. 

 

I am using warp stabilizer on some of the B-roll clips (I'm having issues with the frame rate shift with those, too), but this is really a straightforward edit and the majority of the clips where the color shifting appears are just talking head shots that are almost entirely unedited with just a slight RGB curve edit. 

P
Community Expert
PaulMurphyCommunity Expert
Community Expert
July 8, 2024

Just to confirm, is this correct?

  • Your footage is 23.98 fps
  • Your sequence is 30 fps

 

  1. Why are you converting 23.98 to 30 fps?
  2. Are you applying Optical Flow in the export settings or on the individual clips?

    My initial impression from your description is that doing a frame rate conversion + warp stabilization + h.264 encoding all in the same export seems like a pretty hefty workload for your machine.

    I would suggest breaking these steps up and see if that fixes your problem. Perhaps export a master version in the original frame rate and then convert that to 30 fps and h.264.

    Cheers,
    Paul
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