If you are stuck on a loading screen or hit with infinite pop-up warnings, follow these sequential troubleshooting methods to restore your file. 1. The Fresh Project Import Method
Run the built-in Adobe Expression Update Script to automatically convert legacy mathematical arguments into modern JavaScript engine structures. 3. Change the Expression Engine Type If you are stuck on a loading screen
Below is a to resolve the “asked to create unknown property of type FIX” error. If you are stuck on a loading screen
Restart After Effects. If the error is gone, move the scripts back one by one to identify the culprit. 4. Re-install/Update the Template/Preset If you are stuck on a loading screen
If the error occurs upon launching After Effects, a script in your startup folder is likely the culprit.