FCPX Crashing

You have a huge number of system modifications. Some are obviously too old and some should never be used.

One known offender is Chrome. Completely uninstall it and its “keystone” daemons and agents. See https://chromeisbad.com for an explanation. You then need to delete and reinstall FCP.

One other bad thing is Monolingual. The idea that you can or should delete stuff from languages that you don’t use leads to damaged applications that may work or not, and even fail to start. And all for a negligible amount of drive space.

Some examples of old stuff: flip4mac; and, though very useful, the version of Soundflower is too old for your system.

Seriously consider a ful backup followed by a clean install and the migration of ONLY the user accounts.

First, whenever the application crashes, Trash your preferences.

Do you have third party effects installed? Not sure what you updated but third party effects likely need to be upgraded.

There may be something else. If you could post an EtreCheck report it would be helpful.

A few things stand out. One, you have Chrome installed and its keystone daemons, which should be removed. http://www.chromeisbad.com. After you delete those and reboot, you should reinstall the application from the App Store. Two, you have an App Cleaner that I don't trust. Three, you have a lot of obsolete stuff that you've been dragging around for a while, stuff installed in 2012 and 2014 and more. When you do a system upgrade, like Big Sur to Monterey, you should always do a clean install. Wipe the drive, install the new system, and migrate only the users, then reinstall the applications you need.

You might also try removing all the third party effects, and see if the problem persists. If not, reinstall the plugins in batches to see if you can narrow down the problem.

The crash report is meaningful for developers but not much to the rest of us.

What we need is to know more about the software modifications that are installed.

Etrecheck is a diagnostic program written by a respected member of this community, for just this purpose: provide enough information so that others here can help solving problems.

You can download it for free. Run it, and when it finishes producing the report, click Share Report->Copy Report.

Then in a reply here click the "additional text" button

and Paste the report.

As you can verify before posting, the report does not contain any private information.

The first thing that stood out: you have Chrome and its keystone daemons, and that wreaks havoc on FCP and other video applications.

Uninstall Chrome and its keystone things following the indications in https://chromeisbad.com

then delete and reinstall FCP.

I will look further into the report and see if there are other issues.

Yeah every time the application crashes as you reopen it.

The full report. Use the additional text button to add it.

Baxterboy1 wrote:

Thanks Luis,

I've had Chrome on my Mac Book for a number of years and it has never caused an issue with FCPX in the past. Having read various forums, many people are saying there is a problem between Monterey and the latest version of FCP.

Certainly not - see my previous post. You have so much old stuff that is no wonder your system is unstable.

I am using FCP daily on my own 2019 16" MBP, and it works great, FWIW.

The Additional Text button is at the bottom of the forum reply box. It allows you to paste in the entire copy of the report.

I am not seeing the report…