Blackmagic Forum

Hello,

I am encountering a myriad of issues that the tech support team will not help me on unless I am in version 18.6.6. The project I am needing help with was opened in version 19, thus it was "upgraded". How do I revert this project back to 18.6.6 so I can get the assistance I need. The backups available are far too old to be a viable option. Please inform ASAP. Thank you.

Reverting a 19 project to work in 18.6.6 is not possible.

While support will not assist with 19 issues, that's what this forum is for. If you can describe your issues here, there may be some suggestions.

aidenmitchell wrote:I am encountering a myriad of issues that the tech support team will not help me on unless I am in version 18.6.6. The project I am needing help with was opened in version 19, thus it was "upgraded". How do I revert this project back to 18.6.6 so I can get the assistance I need. The backups available are far too old to be a viable option. Please inform ASAP. Thank you.

Two things you can do (neither one much fun):

1) from Resolve 19, export an XML edit list. You can use that to rebuild/reconform the timeline in Resolve 18.

2) from Resolve 19, export all the Gallery Stills from the project.

You can't use the grade from the project, but you can at least manually eye-match the show with the stills. It will be time-consuming, but you should be able to accomplish it in less time than it took to originally do the color grade.

My advice on when to upgrade (and when not to) at this link still holds:

Before upgrading to Resolve 17...
viewtopic.php?f=21&t=125045

I think that holds true for all versions of Resolve over the last few years. You have to protect yourself, and consider that a Beta version is still undergoing changes. I'm pretty confident (but not 100% sure) that Resolve 19.0 will be out next month, but who knows?

This appears in the System Requirements and Installation notes:

Charles,

Just for clarification, This allows:
• the same project library to be accessed from multiple DaVinci Resolve versions, and
• for the user to decide when to upgrade (or preferably make a copy of) projects to the newer version as needed.

Individual newer (or upgraded) projects can still not be accessed from older versions of DaVinci Resolve.

Regards
Shrinivas

Not wanting to give you false hope, but I tried something that worked with a project for me that had a problematic fusion composition in 19 when I first first opened it. I did have backups, but since I was using the new micro colour panel I was keen to try everything to keep using V19 before rolling back V18.

Despite having already opened the project, I had not made any changes or re-saved it as I saw what a mess the fusion comp was as soon as I played the timeline. I right clicked on the project from the home screen and exported it (declining the save before exporting pop up), closed and reopened DR, then re-imported the project. Much to my surprise it played back normally. I have no idea why this worked, and I imagine It is limited to a very specific issue set. Still, worth a shot I guess.

I appreciate the feedback. I was not aware of the implications of the BETA version, nor was I aware of the cementation upgrading a project to 19 would carry. I have done an insurmountable amount of work in this project in both fusion and the color page, so trying to work with, fix my issues in 19 is the only viable solution.

To try and keep things organized I will number my issues below:

1. When manually syncing audio to video following the steps provided on page 427 of the manual, the clips sync 10% of the time. When following the exact process every time the clips stay linked 1 out of 10 times.

2. I created proxies for all of my media via the BlackMagic Proxy Generator and they initially were working fine. Now when using some proxies (and occasionally random original media; no overlap between the relation of those two) the media is played as presented in the screenshot.

In case you would like to know the specs of my hardware I have attached that too.

I'm sure replies are coming as fast as possible, but I wanted to mention this is an extremely time pertinent issue that is affecting my clients deadline. Thank you.

For starters, we'll need a Resolve diagnostics log, which you can generate from the Resolve Help menu.

We also need a Mac System Info .spx file.

And a project export .drp of your project, with notes about which files in the media pool are not syncing.

Put all those files on a file sharing app and provide links to the files here.

The video artifacts in your image are almost certainly caused by your GPU overheating. In a MBP that old, it's very likely the internal cooling is diminished due to dirt/dust. You can verify that with an internal temp monitoring app. For Sonoma, a good free app would be stats:

https://github.com/exelban/stats

Install that, it will put some widgets at the top. Select the gear icon in any of those, then select GPU and a temp display. It will show you the temp of the Radeon Pro 5500M GPU. When you get the bad video, check the GPU temp. Pretty sure you'll find it elevated. This would be most likely to happen when rendering, or doing any GPU heavy processing.

Thank you Dwaine,

I will get this to you ASAP.

Hello,

Attached below is a google drive link with all of the information you requested:

https://drive.google.com/drive/folders/ ... sp=sharing

I also attached screenshots of the GPU stats w/ and w/o the proxy. The GPU is working harder w/o the proxies, yet the artifacts only exist w/ the proxies. I may be misinterpreting data, as this is not my wheelhouse, so reference those screenshots to be certain.

As for the files that I am unable to manually sync, they are completely random. One example is file labeled (for both audio and video): Sc.01.Sh.02.T.07

Thank you for being so quick with your response. If you need anymore information from me I will get it to you ASAP.

What type of project library are you using for this project?

When you have the bad looking proxy as in the latest screen shot with the temp, open the proxy file in QuickTime Player, and verify the proxy file opens properly in that.

Apologies if I misinterpret your question. I have an identical project library in both my local drive and blackmagic cloud. The project I shared with you is a blackmagic cloud library.

As for the proxy - the file opens with those artifacts in QuickTime Player as well. I presume that means I need to make new proxies. How might I go about that, and what are the possibilities for it creating those artifacts in the first place? How can I avoid them being created in the future?

Looking at the files you mentioned: Sc.01.Sh.02.T.07

The audio wav file has a frame rate of 29.97DF and the video file is 23.976. I think that would make syncing the files challenging. Were you trying Waveform or Timecode syncing? I assume Waveform, since the timecodes are totally different?

OK, so the proxy file itself is bad. Again, it really looks like a GPU overheating issue. The proxy generator likely makes the system work hard enough to get hot and cause the issue.

Maybe do a test proxy creating of a similar batch of files and see what the temp does while that's happening.

I was attempting to manually sync them, as the waveform auto sync function wasn't working (I assume the in camera audio was indistinguishable). I followed the steps outlined on page 427 of the manual to a T and the link between the two clips would not stick when dropped into the timeline.

Can you send me those 2 files?

And tell me which timeline you were dropping them into after the manual sync.

Just uploaded them into the aforementioned drive link.

I created a new bin, put the 2 files in. Did a manual sync. On the Edit page, dropped it into the Scene 6 timeline, after the existing version of the clip. It dropped in with the 6 channels of audio that are in the wav file. I don't see an issue with the manual sync on these files.

And I see why Auto-Sync with Waveform doesn't work. The audio on the MP4 file is the director, not the talent, so nothing to sync there.

For clarification, did you do the manual syn via the media page? Yes, the the auto-sync had nothing to work with. Do I have to create a new bin? I have not needed to do that previously.

Yes, I did that on the Media page following the manual sync details on page 428 of the Resolve 18.6 reference manual.

No, you don't need to make a separate bin, I just did that for my own convenience.

But, I went back and did it in the Scene 1 bin, and it didn't work. And why it didn't work was because I was in thumbnail view mode in the Media Pool. If I put it in list view mode, the sync worked as expected.

This does not happen when i have just the 2 clips in their own bin. It syncs in either view mode.

So that seems like a bug. I'll need to do some regression testing to see if it's a 19b6 issue, or has been that way for a while.

So try syncing with the Media Pool in list view mode and hopefully it works better.

Excellent. This is extremely helpful and also relieving that I wasn't failing this process from incompetence haha.

I have a couple questions in regards to the cloud. Would that be better suit for a separate post?

I may have spoke too soon. Following those exact steps, no wave form is shown when scrubbing through the audio. Image attached.

That's not a sync issue, that appears to be a wav file not there issue.

I've not seen those up arrow cloud sync indicators before, so I'm not sure what's going on with that.

Regarding the manual sync issue, the dev team investigated, and the issue is related to having "Live Media Preview" enabled. Which they are looking into. In the meantime, if you turn off "Live Media Preview" then the manual sync will work if you are in Thumbnail view mode.

The "Live Media Preview" selection is in the Media page 3 dot menu in the upper right corner of the Viewer.

The waveform isn't shown in any file. I attached a screenshot of an example where the media is shown uploaded and the "Live Media Player" is unchecked.

Additionally, the issue prevails when "Live Media Player" is unchecked in thumbnail view. But it does work in list view.

19.1.1 should improve the manual sync behavior with live preview enabled.