If you’ve updated Final Cut Pro or Motion and our plugins stopped working, please try the following steps:
1) Clear your app's preferences:
2) Fix macOS disk permissions:
3) Reinstall affected plugins using mInstaller.
4) If the issue persists, try the manual PKG installers that can be downloaded from the My Products page (the download link will appear once you hover your cursor over the preview miniature): https://www.motionvfx.com/user/products