Level 1

9 points

Lag while clip skimming in the FCPX browser - Sonoma + FCP 10.6.10

I'm on a Mac Studio M2 max. Its pretty brand new, so I went all the way to Sonoma and FCPX 10.6.8. Everything is on the internal SSD.

I'm working on a project and I've noticed that when I play a clip in the browser then stop it to skim elsewhere on it, it takes a 1 or 2 second delay for the playhead to react and appear. The same manipulation on the timeline doesn't do that.

To make sure, I've created a new library with 1 clip in Pro Res Proxy 50% of 4k. The lag is still there.

I also have a base Mac mini M1 with Ventura + FCP 10.6.8 and the lag isn't present at all. So I'm guessing its a problem introduced by Sonoma and/or ver. 10.6.10. It might seem like a minor thing, but losing 1 or 2 second every time I play/stop and skim hundreds of clips, I fear it would amount to hours...

Is there anything I can do? Reverting to Ventura + 10.6.8 seems like a major headache, since I don't have a timemachine of my system yet.

https://youtu.be/f8UnKtCbUOQ

Mac Studio, macOS 14.0

Posted on Oct 21, 2023 4:37 PM

Top-ranking reply

Luis Sequeira1

Level 9

73,254 points

Posted on Oct 22, 2023 3:05 AM

You say "skimming" but in your screenshot it appears that skimming is turned OFF:

Are you really skimming or clicking and pressing space to play?

Please clarify.

Also: when the application is not behaving correctly, one the first things to try is to delete its preferences. To delete preferences, hold down command and option while starting FCP X and click Delete Preferences. The application will start in a default state, and open an "Untitled" library. Reopen the library you were working on, set the preferences the way you like them, and try again.

Any changes?

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24 replies

ay337

Level 1

14 points

Jun 3, 2024 2:51 PM in response to joema

Yes this describes what I'm experiencing perfectly too. Thank you so much for the effort.

Having worked on FCP 10.7.1 a bit more now, sometimes the lag is almost imperceptible to me, and at other times it's a noticeable beat or two before FCP catches up with my cursor.

Okiyah Author

Level 1

9 points

Oct 22, 2023 9:01 PM in response to Okiyah

I've done the same test with the Mac mini : https://youtu.be/I0QG0p9Onb0

You can see there's no delay when I move the cursor after pressing stop ; the skimming starts instantly.

bolinok

Level 1

4 points

Oct 23, 2023 10:49 AM in response to Okiyah

I have the exact same browser skim delay issue, and Final Cut 10.6.10 is somehow laggy on macOS Sonoma 14.0.

Okiyah Author

Level 1

9 points

Oct 23, 2023 11:06 AM in response to Luis Sequeira1

Thank you for this. It eliminates some factors. I think there might be a way to bring the 10.6.8 version that's on my mac mini to my mac studio, I'll try that.

(that was directed to Luis Sequeira1).

BenB

Level 6

13,192 points

May 30, 2024 6:33 AM in response to Luis Sequeira1

Yeah, that skimming icon is OFF, and yet she is skimming (although faster than a jack rabbit).

Tom Wolsky

Level 10

152,780 points

Jun 2, 2024 7:24 AM in response to ay337

“full clip view”

Do you mean filmstrip view?

ay337

Level 1

14 points

Jun 2, 2024 7:32 AM in response to Tom Wolsky

Ah yes sorry, I think so - filmstrip view but with that timer icon set to view 'All'. So each clip appears as a discrete rectangle.

Okiyah Author

Level 1

9 points

Jun 3, 2024 12:29 PM in response to joema

Yes!! Its all exactly as you're describing it. Thank you for putting the time in. I hope this will help Apple people pinpoint the problem if it can reach their ears.

Oct 23, 2023 11:43 AM in response to Okiyah

Adding to the thread with a similar situation here:

Launch FCP. Skimming icon in timeline indicates skimming is active -- but it is not. Must toggle the icon off then on to activate skimming. Not a big deal for me but certainly incorrect behavior.

Mac Pro late 2013

OS Monterey 12.7

FCP 10.6.8

I have reverted back to 10.6.5 which has been reliable and skimming works as expected.

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Lag while clip skimming in the FCPX browser - Sonoma + FCP 10.6.10