Please install MotionDuck with ZXP Installer.

  1. Download ZXP Installer here: https://aescripts.com/learn/zxp-installer/
  2. Install ZXP Installer and open it.
  3. Download this version of MotionDuck here: https://drive.google.com/file/d/1tjRbpos20ehUqsMcK92wOOIJQOH6BpoX/view?usp=sharing
  4. Drag and drop the MotionDuck-3.0.9.zxp into the ZXP Installer.

Then MotionDuck is installed!