The error isn’t unknown . It’s hiding .

exp00 and restart the app. Clean Up File Paths: Ensure your file name and folder path are not too long (Windows limit is ~260 characters) and contain no special characters. Object Isolation: If the error only happens with one file, copy elements into a new document in batches to identify the corrupt object. Complex effects like

If the error happens specifically when you select a text object or an image, that specific element is the culprit.

If this happens in multiple files, your settings might be corrupted.