Particular/Form: Error: Couldn't find main entry point for TrapcodeOBJ.plugin

This is a known issue with the latest update wherein it fails to remove the old OBJ Importer prior to replacing it with a newer one.

Follow these steps to resolve the error:

1. Close After Effects
2. Uninstall your Red Giant plugins using the Maxon App
3. Delete the Trapcode folder at /Applications/Adobe After Effects 202X/Plug-ins/Format/ (wherein 202X is whichever After Effects version you're using)
4. Reinstall your Red Giant plugins with the latest update.