imovies exporting

Try upgrading or doing a fresh install of your OS, plus an updating of your iMovie app. That worked for one recent poster, who upgraded to Mojave and the updated to iMovie 10.1.14. Try just updating iMovie first.

— Rich

See if anything in this thread helps you:

https://discussions.apple.com/thread/6454828?page=2

Try booting up in Safe mode and, after everything loads, immediately shut down and boot up on normal mode.

Also, redownloading iMovie has helped with the Compressor Kit Error.

-- Rich

-- Rich

Also, try calling Apple Support. To do that click on the Contact Support item in the upper right hand corner of this forum’s screen. Navigate to a phone number and talk with the techs. They have the capability of remotely accessing your computer.

By the way, did resetting the System Management Controller help?

—Rich

The way it works is that you give Apple your telephone number on the Apple Contact Support page, and they call you back. So the call originates with Apple and should not be charged to you. Click on the Contact Support tab in the upper right hand corner of this forum's screen, and navigate to MacOS/Mac Applications/iMovie. You will come to a place where you give your phone number.

You are not the only one with this problem. It has been reported for years, but there have been a slew of reports lately.

-- Rich

Try resetting the System Management Controller. It is easy to do. Here's a link that shows you how:

https://support.apple.com/en-us/HT201295

-- Rich