Color Grades Flickering 18.6.3

Just updated to 18.6.3 and I am experiencing flickering between color graded and non-color grade frames when i play back my footage. The grades are extremely simple, 2 nodes, a LUT and another node with some basic curves and primaries adjustments.

See below video:

Edit:
Before anyone asks, yes the flickering is also showing up on export.

Tech Specs:

Detected System:
- OS: Windows 10 Pro (Build 19045)
- Model: Gigabyte Z690M AORUS ELITE AX DDR4
- CPU: 12th Gen Intel Core i9-12900KF, 24 threads, x86-64
- RAM: 9.2 GiB used of 63.8 GiB
Detected 1 GPUs:
- "NVIDIA GeForce RTX 3090" (gpu:1238298e.5150080d) <- Main Display GPU
Discrete, 699 MiB used of 23.2 GiB VRAM, PCI:1:0 (x16)
- Driver version 546.01 (Nvidia Studio Driver)

I'm experiencing the same flicker issues. It also happens with the render cache (the cached frames are rendered with flicker) and when grading in split screen mode (the clip flickers as I make adjustments).

Rolling back to 18.6.2 fixes the issue completely.

My GPU is Nvidia RTX 3060 (12Gb), Studio Driver v546.01

I observe the same thing

Not using the render cache or any LUTs and see no flickering here.
This is a 50fps HD timeline running on Studio 18.6.3 build 19.

If you Bypass Color, same flicker?

If you add that grade to clips without, same flicker? (You can Duplicate the timeline for testing.)

Also, start a new project under 18.6.3 and see if you get the same flickering (just to rule-out a project update issue).

If you Bypass Color, same flicker?

If you add that grade to clips without, same flicker? (You can Duplicate the timeline for testing.)

Bypassed color, same flicker with only contrast adjustments.

Added to clips of different formats in the same project, also had the same flicker.

Also, start a new project under 18.6.3 and see if you get the same flickering (just to rule-out a project update issue).

Tried creating a fresh new project (local database), imported a totally different footage, added just contrast to a single node, still flickers.

I´m seeing this not in Color page, but in render cache and exports. H.264. fullhd and vertical one. Old and new project.

Win 11
Nvidia 3060 12gb
All up to date

[Dwaine Maggart]

@Jian Ming Wong: Please send us a project export .drp of the project used in your screen recording.

Or anyone else having this issue that can provide a drp. Because I'm not seeing this by doing what it appears is happening in the video.

Bypassed color, same flicker with only contrast adjustments.

That's...confusing. Contrast should be included in the Bypass, which means it won't be seen. Which means it's not the grade that's flickering, it's your media.

What am I getting wrong?

Bypassed color, same flicker with only contrast adjustments.

That's...confusing. Contrast should be included in the Bypass, which means it won't be seen. Which means it's not the grade that's flickering, it's your media.

What am I getting wrong?

I think I read your question wrongly, if you were asking if the footage flickers if there are no grades applied then I think it didn't flicker if that's the case. I've rolled back to 18.6.2 and all is back to normal again.

[Dwaine Maggart]

We need a drp to reproduce the issue.

I´m seeing this not in Color page, but in render cache and exports. H.264. fullhd and vertical one. Old and new project.

Win 11
Nvidia 3060 12gb
All up to date

I'm having the exact same issues in 18.6.3 with the weird flickering bars. They aren't in the source files and play back on the footage regardless of color graded or not. Also having the color grade flicker on and off. Quite the update to fix "bugs"

The problem manifests itself in absolutely any project. Old or new. But not immediately, but after a while. About 10-15 minutes.
After restarting the project, everything is ok. And everything repeats.

Changed the drivers. it didn't help.

Rolled back to the old version. everything is fine. The holiday did not work out. Sorry.

Rolled back to the old version. everything is fine. The holiday did not work out. Sorry.

I was thirty seconds away from installing this.

THANKYOU BETA TESTERS!

It’s something related your combination gpu + driver
Here win11 nvidia 1070, Monterey + Vega64 all work fine like ever with 18.6.3


Inviato dal mio iPhone utilizzando Tapatalk

Perhaps. I was rolling back. Nothing has changed.

Windows 11, latest updates . 2070 Super 13700k Intel. 64 RAM.

18.6.2 and earlier did not encounter such a problem.

Not seeing this in our MacStudio M1 Ultra with Monterrey + Resolve 18.6.3

I rolled back to 18.5 bought a brand new Mac Studio M2 and I intend to keep it clean for a long time. Every new release from BM at the moment contains a new bit of fatal trash coding.

Quality control needs a new team, who take what we all do as professionals SERIOUSLY.

Good morning.
I just noticed horizontal bar at the top of the screen in flickering mode in various colors after exporting a movie in 10-bit QuickTime/DNxHR/HQX format.
The issue is quite annoying, I am back to version 18.6.2 waiting for some solution, or waiting for the next release.
I hope Blackmagic will be able to fix this bug.
Thank you

I have a problem too
Everything is fine in the program, there is a problem with rendering

Video - BRAW (BMPCC 4K)
MSI RTX 4090 Liquid X
Driver - I only use NVIDIA Driver Studio (now installed 546.01)
Ryzen 5950X
DDR4 - 64Gb

I also use driver studio in:
AMD Ryzen 9 7950X /Gigabyte GeForce RTX 4080 16GB Gaming OC/ Drivers studio 546.01/64 GB RAM
I hope Blackmagic fixes it with the next release.

Seeing the same issue here

MacBook Pro 16"
Apple M2 Max
64 GB
Sonoma 14.1

Same issue here. Issue goes away when I roll back to older version of DaVinci Resolve.

Mac Studio (2022)
Apple M1 Max
32 GB
Monterey 12.6.8

[Dwaine Maggart]

Please provide a project export .drp that exhibits the issue.

[VivekVedagiri]

Could you please also share logs captured from the session when this issue is happening?

Regards,
Vivek

Flickering gone after switching off decode options/decode H.264/H.265 using hardware acceleration

They've had a VP9 decoding problem forever, now looks like it's affecting other codecs too

_24_12-Message.png (19.17 KiB) Viewed 13679 times

The question I ask myself, why in the previous version 18.6.2, this problem does not happen?
What modification (improvements) caused this problem?
From the change log, it seems to me that many entries were touched.

If one of you having this issue could provide a drp export and logs this will be likely reproduced. If not how do you expect them to fix the issue. Saying they need to fix this issue but not providing the means to reproduce the problem is not helpful.

If one of you having this issue could provide a drp export and logs this will be likely reproduced. If not how do you expect them to fix the issue. Saying they need to fix this issue but not providing the means to reproduce the problem is not helpful.

So true.

[Dwaine Maggart]

And as Vivek has requested, in addition to a project export .drp, we also need a Resolve diagnostics log, which can be generated from the Resolve Help menu.

I think I have the same issue. It happens on color page and on export, but not in Fusion page and when exported something with saver node from Fusion page, all is good. But soon as I try to play back something in Color page or export flickering happens. And weird bars on top of the exported video. This is new to 18.6.3, but on the positive side I've had great performance otherwise and some bugs seems to be fixed, especially in Fusion page. I can load silhouette from Boris FX in fusion page and not crash and there was some weird bars and half drown screen issues in fusion when using Surface Tracker. it seems to be fixed now, so everything is good except the flickering issues reported here by others.

So many people with this problem and no one could provide a drp and logs? Not providing a drp and logs when you are posting about a problem is like asking some you just met to dinner and not giving them the address. Pointless...

Good morning.
I apologize for the question since I have never done this procedure.
How do I export the event log file (DRP)?
Thank you

[VivekVedagiri]

Hi Domenico,

Once you see the issue happening, just go to the Help menu in Resolve, and select "Create Diagnostic Logs". This will create a zip file on your Desktop, and you can send this through.

For the DRP, you can go to the Project Manager UI, right click on the project, and choose Export. It will create a .drp file and you can include this as well.

Regards,
Vivek

Experiencing the same flickering on timeline after color nodes added.

Windows 11
Asus ROG Strix G15
32G RAM
NVIDIA® GeForce RTX™ 3070

Everyone who wrote here is only 1% of all users, maybe even less, the rest simply deleted it and installed the old version. Surprisingly, there is no one here who is doing well. I have the newest drivers, the newest hardware, I use BRAW files shot on BMPCC 4K and I have a problem.

This simply shouldn’t happen, why should we imagine something? There have never been any problems and they just appeared now, which means there is definitely a problem and look what you did there.

Everyone who wrote here is only 1% of all users, maybe even less, the rest simply deleted it and installed the old version. Surprisingly, there is no one here who is doing well. I have the newest drivers, the newest hardware, I use BRAW files shot on BMPCC 4K and I have a problem.

This simply shouldn’t happen, why should we imagine something? There have never been any problems and they just appeared now, which means there is definitely a problem and look what you did there.

You still seem to have a hard time grasping the concept of doing a useful bug report...

Everyone who wrote here is only 1% of all users, maybe even less, the rest simply deleted it and installed the old version. Surprisingly, there is no one here who is doing well. I have the newest drivers, the newest hardware, I use BRAW files shot on BMPCC 4K and I have a problem.

This simply shouldn’t happen, why should we imagine something? There have never been any problems and they just appeared now, which means there is definitely a problem and look what you did there.

You still seem to have a hard time grasping the concept of doing a useful bug report...

Don't be harsh, beta testers and developers might be comfortable with bug reports, regular users just want the thing to work as expected and don't really feel as comfortable as you with reporting this kinds of things. That being said, If I wanted to submit the report, because I have the same problem, is there some kind of personal information that is involved in this, because I don't feel comfortable uploading anything that is personal information, but I am happy to try to provide diagnostics data for the team to try to figure this out. What does this diagnostics data actually contain, can you explain?

You still seem to have a hard time grasping the concept of doing a useful bug report...

I can’t understand why it’s so difficult for you? Many people have a problem and you pretend that it doesn’t exist, saying it’s your own fault. Is it bad to do tests before releasing the next update?

Oleg, the only person with difficulty understanding is you. Since when have people pretended it doesn't exist? Just because some of us don't have the problem does not make it imaginary.
Blackmagic Design do not have a crystal ball where they can see problems in the software when it is running on a system with who knows what configuration. Diagnostic logs, and an NFO file from Windows users gives them the tools to diagnose and reproduce a problem.

Kruno, it doesn't contain any personal information just how the software is running and interacting with the computers' components. The .NFO file is a copy of the list of system components on your computer.

I generated a full report. Attached the render file. I attached the project file and even the project itself with the files used. I didn't change anything in the video, absolutely nothing.

The only thing I did was change setting Camera RAW "Decode Using" from "Camera metadate" to "Clip".

Files: DRP, DRA, LOG, Render Timeline
https://drive.google.com/drive/folders/1ZPKs4yyxAOyiOEDP4yk2ZoH3dqauN441

You still seem to have a hard time grasping the concept of doing a useful bug report...

I can’t understand why it’s so difficult for you? Many people have a problem and you pretend that it doesn’t exist, saying it’s your own fault. Is it bad to do tests before releasing the next update?

Can you point me to the quote where I said this?

Kruno, it doesn't contain any personal information just how the software is running and interacting with the computers' components. The .NFO file is a copy of the list of system components on your computer.

Thank you.

I think I've included the mentioned .drp, log diagnostics as zip file, specs of the PC and two exported videos with the flickering problem. I hope that is enough. Here is the link.

https://1drv.ms/u/s!AgSUK0MKaI_TgrwbfLFf_UA9C3_6AQ?e=KfC2s1

Can you point me to the quote where I said this?

you didn't ask. but anyone asking for reports about a common problem means they haven't done their job well. Beta testers should have caught this problem because it is simple and easy to reproduce. Now we users have to do this work.

Guys, if color stripes appear when rendering material, please tell me what type of license you are using
USB Dongle or software key?
I have a suspicion that the problem occurs among those who use the software key. I have now installed 18,6,3 on my hackintosh with Vega 64 and installed my USB dongle - everything works. But my friend who uses the software key said that he has the same problem and random color stripes appear during rendering. He uses a macbook pro.

looks like it is caused by your mp4 media. what did you use to make that? If I open your drp and import your kennedy eye.mp4 media and place it on the timeline it has the vertical hits (flicker). Open one of my projects and put that media on the timeline it flickers.

That is exported file with the problem. To show the problem. The other file as well. Its not caused by original file, its clean. And in Fusion it works fine and work fine in previous version of Resolve. Only on export it happens. I've tried variety of codecs, I've tried import and export with no applied effects, same thing. But if I save out from Fusion with a saver node as image sequence all is fine. I've tried deactivating hardware acceleration for h264 and h265 in preferences, same thing. I've used also third party plug in (MainConcept Codec Plugin 1.5) to export videos from deliver page. Same problem. I guess the only only thing I haven't yet tried is using Voukoder ... Free Media Encoder.

looks like it is caused by your mp4 media. what did you use to make that? If I open your drp and import your kennedy eye.mp4 media and place it on the timeline it has the vertical hits (flicker). Open one of my projects and put that media on the timeline it flickers.

That is exported file with the problem. To show the problem. The other file as well. Its not caused by original file, its clean. And in Fusion it works fine and work fine in previous version of Resolve. Only on export it happens. I've tried variety of codecs, I've tried import and export with no applied effects, same thing. But if I save out from Fusion with a saver node as image sequence all is fine. I've tried deactivating hardware acceleration for h264 and h265 in preferences, same thing. I've used also third party plug in (MainConcept Codec Plugin 1.5) to export videos from deliver page. Same problem. I guess the only only thing I haven't yet tried is using Voukoder ... Free Media Encoder.

Got it.
can I get a sample of the source media? when I use my files on the timeline with your drp it renders fine in 18.6.3.