Level 1

12 points

What is causing the random glitches in my Optimized/Original Timeline footage?

I don't think this issue ever occurs on my proxies and it is not in the original media files and does not occur when the clip is played from the browser. However, when played in the timeline, I get about 3-4 of these per project. It's a frame or two (and sometimes even appears in the thumbnails in the timeline) where a clip from elsewhere in the project is flashed over the correct clip. The glitch appears on the exported master file as well.

Sometimes it helps to delete all the render files, but then usually the problem just occurs elsewhere.In fact! After I took the screenshot and while I wrote this post, this project was rendering, as you can see. When I returned to the FCPX window, the problem was gone! I guess that glitch is a leftover from when I last had the project open, which was before I last cleared the render files.

MacBook

Posted on Oct 2, 2019 4:45 AM

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flawrencis Author

Level 1

12 points

Posted on Dec 17, 2019 12:51 PM

Tom Wolsky's suggestion to optimize the media of the project has apparently solved the problem for me and at least two other people.

I selected the project in the browser and then File > Transcode Media > Create Optimized. This way you don't have to optimize everything in the event.

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40 replies

husam-ej

Level 1

8 points

Dec 15, 2019 1:51 PM in response to flawrencis

it's not just Iphone footages, I use clips from Sony Handycam and canon 5d mk iv, I mostly work with Multicam videos,

I'm suspecting that there is something with the fps (frame per second ) if it's interlaced or progressive! ( 25i or 25p ) I noticed most of my glitchy footages is 25i , so maybe it's something you guys can check.

Tom Wolsky

Level 10

152,779 points

Dec 15, 2019 2:40 PM in response to flawrencis

If only the software were designed so logically. No, you have to optimize the clips in the browser. You can't optimize the clips in the project, though if you optimize the browser clips, the project clips will use the optimized files. Set the browser filter to show used media, then select the clips to transcode.

sgoggin

Level 1

13 points

Nov 18, 2019 6:52 AM in response to shockwave1215

I get the same thing, I also have the same graphics card. The Radeon Pro Vega 48 8 GB, I presume it is a driver problem with Metal.

Tom Wolsky

Level 10

152,779 points

Dec 15, 2019 2:31 PM in response to husam-ej

This may be a very different problem. You should give specs of the system and show examples.

Tom Wolsky

Level 10

152,779 points

Dec 15, 2019 3:34 PM in response to flawrencis

If it doesn't work you can delete the generated files to reclaim the space.

Tom Wolsky

Level 10

152,779 points

Dec 16, 2019 3:48 AM in response to beelit

Use feedback in the FCP menu.

flawrencis Author

Level 1

12 points

Nov 18, 2019 9:12 PM in response to flawrencis

Hi, everyone. I've spent a total of about 5 hours on the phone with Apple Support in the last 36 hours. I've got another scheduled call tomorrow.

In the meantime, any chance that everyone who has encountered this issue also is burning in their captions? I think the issue started when I started adding captions to my projects and burning them in. Maybe. Idk.

sgoggin

Level 1

13 points

Nov 21, 2019 6:40 AM in response to Tom Wolsky

Thank you for your help however I’m confused because I actually want to edit the video so just importing clips is not that useful.

Importing the clips in the current version of Final Cut Pro does not damage them for me. I can for example import the clips in Final Cut Pro and then export the entire timeline to DeVinci resolve, export in ProRes format and compress with Compressor and there’s no issues. This is in fact my current work around workflow. I can even do some simple editing and clip arrangements and selection in final cut before exporting. The export will even preserve some things like basic transitions and clip duration and selection.

The bottom line is I want to use Final Cut Pro because I like the tool better and it’s not working on the Vega Pro 48 video cards and come others.

fahriah

Level 1

4 points

Dec 7, 2019 5:06 PM in response to Tom Wolsky

Hi. I’m sorry but I’m a little bit confused here with the solution to this problem. I edit videos for my personal projects and these glitches are honestly very demotivating.

I export the clips I used, shot on an iPhone 8 Plus via Image Capture. How else should I go about this?

husam-ej

Level 1

8 points

Dec 13, 2019 5:13 PM in response to flawrencis

Hi, did you talk to Apple Support again the next day? any success solving this problem? it's very important to because these glitches not just appears in fcpx preview, it is also exported to the final product.

Tom Wolsky

Level 10

152,779 points

Dec 15, 2019 2:09 PM in response to flawrencis

A few things I would suggest for you. Don't use iCloud Photo, because not allow keeping the videos on the camera for most clips. Don't use AirDrop. Connect your phone to the camera and use the import window. Optimize your media. I know it creates large files and requires fast drives, but it encode is much better than handled in HEVC or H.264 with unstable frame rates produced on the phones.

flawrencis Author

Level 1

12 points

Dec 15, 2019 3:24 PM in response to Tom Wolsky

Well, it's been doing this for about 25 minutes. And my available storage space has been dropping. It's been going from 0 to 100 repeatedly, so I think it is indeed transcoding each clip in the project.

Dec 17, 2019 11:05 PM in response to flawrencis

I'm having the same issue whenever I throw in my iPhone XS footage into a timeline with non-iPhone footage. Issue began with 10.4.7 and still happening in 10.4.8. I have Macbook Pro 15 inch, 16 RAM, Radeon Pro 455 2 GB, 2.7 GHz Intel Core i7 Running Mojave10.14.6. THIS IS THE WORST. Can't export my work!

Oct 30, 2019 11:17 PM in response to flawrencis

I'm having the exact same problem.

Alchroma

Level 7

23,912 points

Oct 31, 2019 2:25 AM in response to flawrencis

It would be good idea to report this to feedback as a number of users are experiencing the same thing:

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What is causing the random glitches in my Optimized/Original Timeline footage?