Final Cut Pro crashes when I press the "delete" key

Whenever the application crashes, you should 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.

You have cleanmymac. This is utter GARBAGE.

Completely uninstall it following their instructions.

You have the WD software. Third party drive manufacturer software is not needed and could cause problems.

And you have... Chrome. This is poison to FCP and other professional applications, particularly due to its "keystone" helpers. They are ostensibly meant to keep it up to date but hog the system videotoolbox causing crashes and other problems.

See https://chromeisbad.com for an explanation and for how to remove.

Then you will need to delete FCP and download a new copy. NOTE: this will get you the current version, 10.6.6.

Please run Etrecheck and post its full report here using the additional text button below your message.

Please post a new Etrecheck report.

prettygirlmisty wrote:

I’m having the same problem

I can only give you the same advice.

As you can see, the OP has many "bad" things installed.

We cannot say if your situation is the same, but it could be.

Follow the advice already given to the OP and let us know.

I’m having the same problem