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TOPIC: FCPX Hangs all the time!

FCPX Hangs all the time! 21 Mar 2020 10:26 #105458

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FCPX 10.4.8 running on iMac Pro Mpjave 10.14.6. Ram: 64GB

My FCPX keeps hanging with beachball, virtually on any Library and any project and the only way out is to Force Quit. This happens if I try to move anything within FCPX, like to a new Event, or open a Project.

It's just crazy! I can't do anything.

Any suggestions? Please!

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FCPX Hangs all the time! 21 Mar 2020 12:57 #105461

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That's crazy amount of RAM! LOL!!!!

OK, first verify you have at least 15% of your system drive as free space. It's not as necessary, but apply that rule to all your drives to have a good, clean system.

Have you rebooted the Mac from a cold boot?

Delete all render files.

There's something eating up resources...

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FCPX Hangs all the time! 21 Mar 2020 23:21 #105478

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Thanks for replying. I got 64GB when I ordered my iMac Pro to future proof it, as I am not planning on upgrading hardware for at least 5 years, maybe 10!

I have 1TB internal SSD, with 560GB free.

I looked at Activity Monitor, and and when FCPX freezes (beach ball), it has plenty of resources, and it just stops from running. The cpu for FCPX does not change, neither does the ram usage.

I did a Force Quit and deleted all render files, cache and lock files. This meant I was at least able to start FCPX. I tried opening some Libraries and some open and some freeze as soon as I try to make any changes. I am going through them slowly, and using Final Cut Library Manager to delete all rendered files.

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FCPX Hangs all the time! 21 Mar 2020 23:27 #105479

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Have you ever run EtreCheck on the machine? Sounds like something is borking the system. You might also try creating a new admin user as a test.

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FCPX Hangs all the time! 22 Mar 2020 00:29 #105480

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Hadn't heard of etreCheck before, so thanks for the suggestion. Downloaded it and bought the Pro Pack.Looking through the report - looks ok.

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FCPX Hangs all the time! 22 Mar 2020 00:55 #105481

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Would have been helpful to mention NOT to get this from the App Store, but from the developer's website !

Anyway, I have now converted to the non-App Store Pro version and running the analysis.

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Last edit: by pszilard.

FCPX Hangs all the time! 22 Mar 2020 01:22 #105482

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Didn’t know it was in the App Store.

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FCPX Hangs all the time! 22 Mar 2020 18:24 #105501

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What kinds of drives are connected to your machine? Raids, USB, TB2?

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FCPX Hangs all the time! 22 Mar 2020 20:54 #105502

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Free app from Digital Rebellion (dot com) called "FCS Remove" to remove FCPX totally from your machine (won't touch Libraries). Reboot, reinstall from scratch.

Uninstall Chrome totally.

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FCPX Hangs all the time! 22 Mar 2020 21:14 #105504

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Removing FCPX is a bit too drastic for me. I have probably close to a 100 plugins installed, so thanks, but no thanks. :P

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FCPX Hangs all the time! 22 Mar 2020 21:15 #105505

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Attached drives are:
- Promise Pegasus box connected via TB3
- Synology NAS via Gig LAN
- USB3 connected Time Machine drive

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FCPX Hangs all the time! 23 Mar 2020 05:16 #105513

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pszilard wrote: Removing FCPX is a bit too drastic for me. I have probably close to a 100 plugins installed, so thanks, but no thanks. :P


It doesn't affect plugins, reinstalls are quick and easy and you don't lose anything. Libraries and add-ons are not touched.

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FCPX Hangs all the time! 23 Mar 2020 08:21 #105516

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I would start the Mac in recovery mode and check the hardware. I had similar issues years ago with a broken ram.

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FCPX Hangs all the time! 23 Mar 2020 17:59 #105534

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Check your drives... I've had similar hangs with my pegasus (TB2) unit when one of the drives in the raid is approaching its eol. Take a look at the drive logs and see if one of the units isn't timing out and then resetting itself.

When I replaced the drive in my R6 the SBBODs went away.

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FCPX Hangs all the time! 24 Mar 2020 07:29 #105548

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Thanks for the hardware tips. My drives checked out ok, however.

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FCPX Hangs all the time! 24 Mar 2020 08:42 #105550

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There seem to be some issues since 10.4.7.
forums.creativecow.net/thread/344/54994

I discover the same performance problems as described.

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FCPX Hangs all the time! 24 Mar 2020 13:31 #105559

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pszilard wrote: FCPX 10.4.8 running on iMac Pro Mpjave 10.14.6. Ram: 64GB

My FCPX keeps hanging with beachball, virtually on any Library and any project and the only way out is to Force Quit. This happens if I try to move anything within FCPX, like to a new Event, or open a Project....


Make sure you are not running the Chrome browser. It can saturate the VideoToolBox framework causing FCPX to hang or crash.

Try a test with your data and libraries only on a locally-attached drive, not the Synology NAS.

It could also be caused by a plugin.

Due to current limitations in MacOS plugin architecture, a plugin can hang or crash the host app - FCPX in this case. This is because currently all plugins run "in process". With the new FxPlug 4 SDK, it will be possible for developers to migrate their plugins to an "out of process" design which will not crash or hang the host process: developer.apple.com/documentation/profes...fxplug?language=objc

In the current architecture any plugin (excepting those based on a Motion template) can cause this and it is often difficult to determine which one. The more plugins you have the greater the risk.

There should be a totally standardized method to check plugin versions, update them and remove them. Alas, there is not. You might be able to create a new user account, install FCPX in that account, then try one of the "problem" libraries or data sets.

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Last edit: by joema.

FCPX Hangs all the time! 24 Mar 2020 21:29 #105579

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Thanks for your recommendations.

Normally I use Brave browser, which is built on Chrome - so I'll close that before starting FCPX.

Libraries can only run from local drives or SAN, and my Synology is configured as NAS only - so I don't ever run (can't) a Library from there. I do however store Libraries on the Promise box, which is a SAN, but never had problems before.

I will have to do more debugging. ATM I am pre-occupied with setting up clients to work from home, as I am an IT Support person.

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