Big White box glitches in Davinci 20

Since I upgraded to Davinci Resolve 20, I'm getting these white glitch boxes all over that get exported out when I did a test export to see if it was just a cache issue and I couldn't figure it out until remembering HSV issues having negative values can cause glitches.

So I just went back in and looked to verify, even though I had already fixed that issue a long time ago and have been using literally the exact same settings on those nodes on every project and was just fine, even this same project it was fine earlier, but when I verified the settings, none of them are negative values, and in fact, I literally only have 3 things set and 2 is just a slight nudge on gamma and gain by just a few points up on Saturation node, and the only lower value is the gain on the Value node by 0.02 points, which was fine in the past up until Davinci Resolve 20.

But.....even thought that isn't a negative number, and if I reset that to flat 1.00. The glitches are still there.

I have no other settings on any other of the HSV nodes. Those are the only three. If I set ALL the nodes to default and have no settings changed what so ever. The glitches are still there.

However, if I delete all of the HSV nodes, the glitches disappear.

So there seems to be a bug with the HSV nodes now in Resolve 20.

I'm working in DWG if that makes any difference. It did not before. I updated my drivers just in case and that didn't help. The only chance was updating to Resolve 20 and now I can't use HSV nodes.

Also to note, I noticed while typing this out, if it sits on that frame for a few minutes, the glitch goes away, but it just goes to another frame so I still can't render it, and then later it will go back to that frame.

[Dwaine Maggart]

Please provide a Resolve Diagnostics log, a Windows System Information .NFO file and the smallest possible Resolve Project Archive .dra (zipped) that repros the issue on your system.

Ok update already.

This is so weird, I left the house after I posted this, but now back to continue troubleshooting and was curious if maybe I had a node pushing something too far, so I went to another random node I had dropped highlights down a little extra, changed it slightly and the glitch went away, then just to see it come back, I put it back at where it was and it didn't come back.....So then I went to the next clip it was doing this and I didn't do anything except disable and enable that node and it went away.

After trying a different node just random on a 3rd clip, it went away, so it isn't a HSV specific thing, which I originally thought it was because I had enabled and re enabled those nodes multiple times, changed settings multiple times and the glitch would not go away unless I completely deleted the HSV nodes.

Now some how it is different. It's not a restart to fix a random bug thing, because it did this the same day Resolve 20 was released to public and I had shut down my computer each day since.

I had originally ruled out any cache issue, because I had already specifically deleted the cache from selected clips, and also deleted the entire cache library for the project in the management tab, then re cached it and it still did it.

So not sure why it is randomly fixing itself now as I disable and enable nodes now when it wasn't working earlier.

Trying to find those logs

[Dwaine Maggart]

Generate the Resolve diagnostics log using the Resolve Help menu.

Generate the Resolve diagnostics log using the Resolve Help menu.

I think I got the files from what I understood....

https://www.dropbox.com/scl/fo/qz636f6p ... svyty&dl=0

That's the log, the system info, project file and a very small clip cut where one of the glitch artifacts were at.....when it was there earlier.

Knock on wood, but so far they went away and have not come back......yet. Not sure how or why, not complaining either, and hoping that it doesn't come back after I say this.

Edit.....of course it came back, ugh

[Dwaine Maggart]

The NFO file indicates that you have a display connected to the RTX3090 card, and a display connected to the onboard graphics port of the computer. That will cause issues. All displays need to be connected to the NVIDIA GPU.

Let us know if that has any effect on the issue. If not, we need a project archive .dra of a project that reproduces the issue on your system.

What you've sent is a Project.db file. Not sure how or why you sent that. If we request a project file, you would normally right click that project in the Resolve Project Manager page, and select Export Project, which will generate a project export .drp file. You should not be messing with Project.db files directly.

However, in this case, I'm not asking for a project export. I'm asking for a project archive, which includes all the media in the Media Pool. To make a project archive, right click the project in the Resolve Project Manager page and select "Export Project Archive..." This will generate a folder with a .dra extension. Zip that folder and send the zip.

Again, a Project Archive will contain ALL the media in the Media Pool, which is why I'm requesting you make a project with the least amount of media needed to reproduce the issue. so the archive size is manageable.

So the NFO file is wrong then, because I don't even have a display connection to an onboard graphics that does not exist. The 3090 has two HDMI ports which are both being used for my only two monitors and the only two ports on my entire computer.

And I see what you mean now, I didn't know the difference with the project .drp

I made a new project and cut a smaller render in place of just one of the files it does it on.

https://www.dropbox.com/scl/fo/w10qnzou ... hwxkz&dl=0

[Dwaine Maggart]

Windows lying? Shocking!

That dra is what I need. On first glance, I don't see an issue, but I'm not currently on a system with a similar GPU.

How long does it take for the white blocks to appear? Do those happen as soon as you start playing the timeline, or is it more random than that?

because I don't even have a display connection to an onboard graphics that does not exist.

Are you still running the i9-12900k, because that CPU has an Intel® UHD Graphics 770 built-in. You could try temporarily disabling it in your BIOS (post your motherboard model if you need instructions to do so).

[Dwaine Maggart]

OK, I've repro'd the white squares on a system with an RTX A2000. I've asked the dev team to take a look.

Windows lying? Shocking!

That dra is what I need. On first glance, I don't see an issue, but I'm not currently on a system with a similar GPU.

How long does it take for the white blocks to appear? Do those happen as soon as you start playing the timeline, or is it more random than that?

Ohhh Sorry, I marked this to notify me for responses and it hasn't been notifying me anything. I had a hunch and manually checked.

I am not sure when it started specifically after I started coloring. I just remember I used the exact same set up on the video just before it in that same project in Resolve 19.4.1, then upgraded to 20 and started that video in the same main project, then after a couple hours color grading I noticed that. Then I went and updated the drivers just in case and it stayed.

It went away after disabling and re enabling some nodes, but eventually would come back after it re cached. But then has since totally gone away after I cleared one node that had -13 highlights, that I didn't need and that seemed to fix everything across the board after deleting that on every clip.

OK, I've repro'd the white squares on a system with an RTX A2000. I've asked the dev team to take a look.

Ohhh, ok, I was starting to think if somehow the file got pushed too far, but was just weird because it wasn't any further pushed than any other video previously and charts were well within the ranges.

Thanks so much for looking into it.