Blackmagic Forum

I have been trying to output some projects I was working on a few months ago and I am not sure what has happened. My clips that need rendering are only showing a portion of the clip. Looks like some sort of tearing has taken place. Any idea how I can get my projects back on track?

Kevin,

As we can see on the attached screeshot, the playhead is just at the frontier between uncached (red) and cached (blue).

The first things I would try in such a case are (in this order, until it works), from the Playback menu:

- Disable "Use Optimized media if available"
- Change "Render cache" to "None" (from actual "Smart" I guess)
- "Delete render cache" on selected clip (the problematic ones)
- Set "Render cache" to "User" and wait for the caching to end (blue line all along)
- Set "Render cache" to what is was set to (again, I guess it's "Smart")
- Rebuild "Optimized media" and reeanble them if you were using that feature.

Hope it can help,
Regards,
Eric

P.S. Is the Coffee available in Europe?

Thanks for the reply Eric. None of that worked. I think its a bug in the timeline with DR17. I've tried relinking the media as well. The clips will come in fine but when I add an effect or try to grade the clip in the timeline malfunctions. Not sure what to do.

By the way, the coffee is available on Amazon here in the US.

Kevin,

One of the problem I had when migrating to DR17 (Beta 2) that resulted in some kinds of video corruption was in fact (apparently) due to the changes in the Audio core (buses vs fixed). I have even published a video with a few tiny glitches (which make sense now even if they were not my intentional intent).

I will do my best to explain what I've done:
- In your project settings, there is a new check box called "fixed" (something) which is checked by default with old projects (DR16) and unchecked for new DR17 projects.
- What you have to know is that once you have created the very first timeline, this check box cannot be changed anymore.

Well, at this point you probably have this one checked. If you go in the Fairlight menu, you should retrieve the fixed buses that existed in DR16 (main, sub...).

To fix the problem:
- I enabled the "dynamic projects switching"
- I created a new empty project
- i created a new timeline and made sure that the "new check box" was unchecked.
- I then recreated the timelines in the pure DR17 project and copied/pasted *the content* from the "former DR16" project's timelines (copying the timelines didn't give the expected result).
- probably had to relink the media files.

- I can't remember neither if I've tried the "export/import" timeline nor if I knew about it at this time (surely worth a try).

At the end of this, I had a fully pure DR17 project with new audio buses (that I wanted) and no more glitches *in Video*.

May be not the smartest way to fix the problem... But all in all, it hasn't been that long and proven to be fully effective.

Regards,
Eric

P.S. forgive the typos as I'm typing on a tablet and my fingers tend to slip on the screen now that I've washed my hands too often due to the covid stuff...

Thanks, I will work on that.

I just realized that this error is happening on project archives I have restored. New projects seem to work fine.