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Known Participant
November 22, 2017
Answered

White line flickering on the edge

  • November 22, 2017
  • 18 replies
  • 29124 views

I changed the sequence settings from 1920 X 1080 format to a square 1080 X1080 format. The reason is I wanted to post the video on instagram.

This created a problem: a white flickering line across the right hand corner of the program monitor on certain clips. This line does also appear in the exported video.

- If I change my sequence setting back to 1920 X 1080 this problem disappear.

-  In my time line, I have added adjustment layers above all clips. On the adjustment layers I have added the Lumetri Color fx for color correction.

- Flickering appears only when these adjustment layers are enabled. However, some clips do not get any flickering, even when adjustment layer is enabled.

- If I apply the Lumetri Color fx to the video clip instead, and disable the adjustment layer, the flickering goes away.

- However, if I then replace video clip with after effects compostion (I want to add some moving text fx to my video) the flickering comes back.

- I have tried resizing the clip to 300% to ensure the clip fills up the whole program monitor.

- on my time line I have MPEG:s from a DJI Phantom 4 (23,976 fps), a Canon xa10 (25 fps)  and a GoPro Hero 3 (25 fps)

- the white line appear on all three kinds of footage, but not on all clips in the timeline. To me it seems random which clips have the whiteflcikering line and which have not.

- i use a MSI GS VR 7RF Stealth PRO Laptop.

- I have restarted the computer several times.

Correct answer Averdahl

It´s a bug in the Lumetri color and should be fixed but probably not in CC2018.

For me, resetting the Blacks and the Whites in the Lumetri filter fixed the issue. Or, turn off CUDA acceleration.

18 replies

Participant
July 4, 2018

I have found this only happens when changing the whites in lumetri color. All other basic color correction tools work fine.

Participant
July 9, 2018

It works! Thank you!

danielh815772
Participant
July 1, 2018

Ran into the same issue found a quick fix: Go to File, Project Settings, General

and change Renderer from "Mercury Playback Engine GPU Acceleration (CUDA)"

to "Mercury Playback Engine Software Only"

So you don't get GPU acceleration anymore but it lets you use Lumetri as intended. I only needed it for a quick project so if you really need gpu accel

for larger projects try the other suggestions.

Whatever the issue is it's definitely something weird with Nvidias end maybe even CUDA related.

I'm on a Ryzen 1700 with a GTX 1060 btw.

janowsk
Participant
June 2, 2018

Hey man!

Am super late to the party, but i just had this exact problem myself under the exact same circumstances. Managed to work around it by nesting the problematic clips and their respective Lumetri Color adjustment together inside the 1920 x 1080 sequence, and then copy-pasted the nested clips into my 1080 x 1080 sequence. The white flickering bar never showed up, solving the problem for me! If you need to adjust the color, you can always double-click on the nested sequence and edit the lumetri color parameters from there. Hope this helps!

Participant
April 20, 2018

hey I had the same problem so I googled and this result came up and still no answer..

my problem was gone trying a few stuff,

change the frame rate to 30 fps

my footage was 4k and 1080 included and had different frame rates

like 4k = 24 fps, 30fps

1080 = 120 fps

and set my footage to 1080 1080  29.97 fps

I created a new sequence, changed it to 30 fps, copy and pasted

that goddamn annoying white-the-fu*king-shit thing disappeared. 

I think this is just a temporary thing, the white shit is gonna appear again.

so.. maybe like you make it by 1280 1080 and cut it to 1080 1080 when you render.

Participant
January 31, 2018

Hi there - I'm experiencing this white line as well with Lumetri. Has anyone found a fix yet?

R Neil Haugen
Legend
January 31, 2018

Hope you've filed the bug on this ...

Neil

Adobe Bug Report /Feature Request form ... https://www.adobe.com/go/wish

(They never respond to postings, but all filed reports are collated and distributed to all relevant managerial types, so they are seen.)

Everyone's mileage always varies ...
Participant
December 30, 2017

I have the exact same issue and thank you guys for troubleshooting this.  This is definitely a Premiere bug.

Known Participant
November 24, 2017

Ann!

The problem goes away when removing the A-L with Lumetri Color. Seems I can't use this efffect on a A-L above certain clips when in a 1080 X 1080 resolution. Neither can I use this FX on these clips directly.

I tried using another color correction FX, for instance the Fast color correct, then there's no problem.

Ann Bens
Community Expert
Community Expert
November 24, 2017

Is it a problem using Fast CC instead of Lumetri: just for the sake of getting the project finished?

Known Participant
November 27, 2017

No, it´s no big problem using other color FX in orther to get the project finished. But the color corrections were already made and working fine as long as the project was in 1920 X 1080 resolution. So, it´d be great to just be able to use them instead of creating new ones.

R Neil Haugen
Legend
November 22, 2017

What is the GPU situation with that computer? And what are you using for Mercury Acceleration in the Project file setting dialog?

Neil

Everyone's mileage always varies ...
Known Participant
November 23, 2017

GPU: NVIDIA Geforce GTX 1060

Mercury Playback Engine GPU Acceleration (CUDA)

/torsten

R Neil Haugen
Legend
November 23, 2017

How about starting a new project ... creating a 1080x1080 sequence before dropping media on it. Make sure that in the preferences, you have the scale-to/set-to option set for "none" ... and one by one, trying a clip of each, and building just what you've got so far with the three clips. Manually scale the clips if say you've got 4k there.

And a few questions ... do you have one or multiple adjustment layers of Lumetri above the clips? What is the reason for using the adjustment layers, and do you have any Lumetri directly on the clips? Are you spanning clips with A-L's of Lumetri?

If you don't have Lumetri directly on the clips but only on an A-L above, you might try copy/pasting that onto the clip, removing the A-L, and see if that fixes the problem.

Neil

Everyone's mileage always varies ...