: Open your timeline, press EE to reveal all layers with active expressions, and change generic names to specific ones (e.g., change Layer to Choose Target Layer or Color to Primary UI Color ). 3. Clear Out ScriptUI Panels and User Presets
: Go to the top menu and select Edit > Purge > All Memory & Disk Cache .
If the warning box locks your interface or loops infinitely, preventing you from navigating your timeline, bypass it through a fresh workspace asset import. Launch a completely blank, new After Effects project. Choose (or hit Ctrl + I / Cmd + I ).
/Applications/Adobe After Effects [Version]/Scripts/ScriptUI Panels
If it is configured to modern JavaScript, switch it to (or vice versa) and hit OK.
Ensure your computer meets the minimum system requirements for After Effects. Also, make sure your graphics drivers are up to date, as outdated drivers can cause issues.
Move all items out of this folder to a temporary desktop directory. Re-introduce them one by one, restarting After Effects between each until the crash or loop triggers again. 2. Update or Change the Expressions Engine
If the problem stems from a downloaded project template, updating how scripts handle animations within your timeline often clears the error instantly. Go to the menu at the top of the program. Select Scripts > Update Legacy Expressions.jsx .
Look for the layer with an expression error (the stopwatch icon will turn red).
: Open your timeline, press EE to reveal all layers with active expressions, and change generic names to specific ones (e.g., change Layer to Choose Target Layer or Color to Primary UI Color ). 3. Clear Out ScriptUI Panels and User Presets
: Go to the top menu and select Edit > Purge > All Memory & Disk Cache .
If the warning box locks your interface or loops infinitely, preventing you from navigating your timeline, bypass it through a fresh workspace asset import. Launch a completely blank, new After Effects project. Choose (or hit Ctrl + I / Cmd + I ). : Open your timeline, press EE to reveal
/Applications/Adobe After Effects [Version]/Scripts/ScriptUI Panels
If it is configured to modern JavaScript, switch it to (or vice versa) and hit OK. If the warning box locks your interface or
Ensure your computer meets the minimum system requirements for After Effects. Also, make sure your graphics drivers are up to date, as outdated drivers can cause issues.
Move all items out of this folder to a temporary desktop directory. Re-introduce them one by one, restarting After Effects between each until the crash or loop triggers again. 2. Update or Change the Expressions Engine as outdated drivers can cause issues.
If the problem stems from a downloaded project template, updating how scripts handle animations within your timeline often clears the error instantly. Go to the menu at the top of the program. Select Scripts > Update Legacy Expressions.jsx .
Look for the layer with an expression error (the stopwatch icon will turn red).
