Final Cut Pro X footage glitching

The Browser is where you see your clips.

They can be displayed in Clip View or List View

The below example is Clip View:

You select a clip/s, right click and choose Transcode Media.

You can select between Optimised or Proxy.

Always select Optimised unless there are overriding issues. eg. disc space running out, playback slow etc.

Al

This may be caused by bad render files, so first delete ALL render files. Select the library in the browser sidebar, do File->Delete Generated Library Files... and select All Render Files.

If this is not enough to fix things, let us know. What version of FCP are you using? What version of macOS?

Hey I am having the same issue, with a video & every time I download it , it has glitches in some of the clips. I clicked “ file “ and don’t understand what you mean by “ select clips in the browser “ please help!

I've been having this issue too.

iPhone Pro Max, recording in 4K 30 and editing in FCP (latest update).

It would randomly show the glitches you've demo'd, in almost every video I edited. To the point I was exporting multiple times, just to fix a new glitch. Really frustrating.

I believe I've sorted it for me. Which was to change the 'Formats' in the camera settings to 'Most Compatible' instead of 'High Efficiency'. Yes the files are larger, but so far I've not had any issues since using this setting.

Also try optimizing the media.

The render files are generated automatically by FCP X. Deleting them does NOT delete any of your media.

Could you post screenshots of what you’re doing where. All iPhone video can be optimized.

You have to select the clips in the browser.