Glitch with red footage in timeline and export

[Truss13]

When I render my Red footage in premier i get a blue green glitch that comes across the footage. It seems to be only to footage that I have added Lumetri color to. Looking for a fix, or the answer to what im doing wrong. I have never seen this before. 

[R Neil Haugen]

There are problems with the latest Nvidia driver, and this may be related. Do you have an Nvidia GPU?

At any rate, to check for GPU issues go into the Project settings and set Mercury Acceleration to Software Only. If that fixes this, it's a GPU issue.

If so, try changing GPU drivers.

Neil

[Truss13]

Thank you for your response. I have a Macbook Pro with Radeon Pro 555X 4 GB Intel UHD Graphics 630 1536 MB. Yes when I set it Mercury Playback Engine Software Only it seems to go away. But is going to take hours to export my project. 

[Truss13]

Also if I take color correction off it stops doing it even when its not set to mercury only. 

[Mauiimau]

I was just experience something similar. I can't tell you what the acutaly problem is but a solution that worked for me was creating an Adjustment layer and applying color correction to that layer. Got rid of the problem. 

[R Neil Haugen]

Definitely a problem with the driver used by that computer. Changing Apple involved drivers is less easy than any other OS, but ... that's what the problem is.

Neil

[Truss13]

Thanks Neil, 

Is there a reason this is just happening now? Is the footage im working with to large for my graphics card? I have edited 4k footage on this computer for months and never had an issue until this project, some of this footage is 6k is that the issue? 

Thanks so much for your help, 

Ted 

[R Neil Haugen]

I'm nowhere near familiar with the Apple gear/OS stuff. I know there's been a ton of changes between the OS and their utilities and those have had a lot of effects on video post work. Some "not good ..." in there.

And as to video drivers in general, they seem to somehow work great in one situation/time, then cause problems. So we're all working away and then for some reason need to update.

Or in some situations roll back. The why/wherefore stuff is way above my ken.

I just worry about the stuff I can change, the practical stuff. Driver issue? Try a different driver. One works? Well ... get working.

There are some who hang around here and the Video Hardware forum who can discuss arcane gear issues in great detail. Not me, though.

Neil

[salvo34]

pretty lame thread to 'fix something'.

If the only thing new is 6k and everything is fine if you don't use 6k, then that's your problem.

If you use Redcine X and everything is fine, then it's not the driver.

You can transcode from there to something the stupid editing program can handle OK.

Neil doesn't use red cameras and has no clue what your computer is doing. Neither do I.

Go to the red forum if you want to know more.

[R Neil Haugen]

I've got a couple current projects with 6k RED on them, and they work fine both on my desktop and laptop. Both Win10, desktop with an Nvidia 1060/6GB, laptop with a 2080 (laptop version). But those are very different than your Mac OS/AMD video card system.

But without Lumetri, they show "normal" ... hmmm. Although I don't see Lumetri applied to the clip in your example, unless you applied it via the MasterClip settings. If these are RED full r3d files, how well are they responding to the RED settings in the MasterClip tab of the ECP?

Neil